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444211040 = 25571330509
BaseRepresentation
bin11010011110100…
…001111101100000
31010221212020222202
4122132201331200
51402204223130
6112024552332
714002505630
oct3236417540
91127766882
10444211040
11208822369
121049226a8
1371050a90
1442dd26c0
1528ee8145
hex1a7a1f60

444211040 has 96 divisors (see below), whose sum is σ = 1291671360. Its totient is φ = 140580864.

The previous prime is 444211007. The next prime is 444211049. The reversal of 444211040 is 40112444.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444211049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695 + ... + 29814.

It is an arithmetic number, because the mean of its divisors is an integer number (13454910).

Almost surely, 2444211040 is an apocalyptic number.

444211040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444211040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645835680).

444211040 is an abundant number, since it is smaller than the sum of its proper divisors (847460320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444211040 is a wasteful number, since it uses less digits than its factorization.

444211040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30544 (or 30536 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 444211040 is about 21076.3146683665. The cubic root of 444211040 is about 763.0092142807.

Adding to 444211040 its reverse (40112444), we get a palindrome (484323484).

The spelling of 444211040 in words is "four hundred forty-four million, two hundred eleven thousand, forty".

Divisors: 1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 65 70 80 91 104 112 130 140 160 182 208 224 260 280 364 416 455 520 560 728 910 1040 1120 1456 1820 2080 2912 3640 7280 14560 30509 61018 122036 152545 213563 244072 305090 396617 427126 488144 610180 793234 854252 976288 1067815 1220360 1586468 1708504 1983085 2135630 2440720 2776319 3172936 3417008 3966170 4271260 4881440 5552638 6345872 6834016 7932340 8542520 11105276 12691744 13881595 15864680 17085040 22210552 27763190 31729360 34170080 44421104 55526380 63458720 88842208 111052760 222105520 444211040