440101020 has 48 divisors (see below), whose sum is σ = 1234050048. Its totient is φ = 117192000.

The previous prime is 440101003. The next prime is 440101027. The reversal of 440101020 is 20101044.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 440100987 and 440101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440101027) 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, 40177 + ... + 49943.

It is an arithmetic number, because the mean of its divisors is an integer number (25709376).

Almost surely, 2^440101020 is an apocalyptic number.

It is an amenable number.

440101020 is an abundant number, since it is smaller than the sum of its proper divisors (793949028).

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

440101020 is a wasteful number, since it uses less digits than its factorization.

440101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10530 (or 10528 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 440101020 is about 20978.5847949760. The cubic root of 440101020 is about 760.6486959190.

Adding to 440101020 its reverse (20101044), we get a palindrome (460202064).

The spelling of 440101020 in words is "four hundred forty million, one hundred one thousand, twenty".