1140100444 has 60 divisors (see below), whose sum is σ = 2464835184. Its totient is φ = 459806592.

The previous prime is 1140100441. The next prime is 1140100459. The reversal of 1140100444 is 4440010411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140100441) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 159777 + ... + 166759.

Almost surely, 2^1140100444 is an apocalyptic number.

1140100444 is a gapful number since it is divisible by the number (14) 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 1140100444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1232417592).

1140100444 is an abundant number, since it is smaller than the sum of its proper divisors (1324734740).

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

1140100444 is an equidigital number, since it uses as much as digits as its factorization.

1140100444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7032 (or 7009 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1140100444 is about 33765.3734467724. The cubic root of 1140100444 is about 1044.6746066858.

Adding to 1140100444 its reverse (4440010411), we get a palindrome (5580110855).

The spelling of 1140100444 in words is "one billion, one hundred forty million, one hundred thousand, four hundred forty-four".