398924881044 has 48 divisors (see below), whose sum is σ = 959813934912. Its totient is φ = 128894102272.

The previous prime is 398924881039. The next prime is 398924881073. The reversal of 398924881044 is 440188429893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3725769 + ... + 3831344.

It is an arithmetic number, because the mean of its divisors is an integer number (19996123644).

Almost surely, 2^398924881044 is an apocalyptic number.

It is an amenable number.

398924881044 is an abundant number, since it is smaller than the sum of its proper divisors (560889053868).

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

398924881044 is a wasteful number, since it uses less digits than its factorization.

398924881044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7557256 (or 7557254 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 60.

The spelling of 398924881044 in words is "three hundred ninety-eight billion, nine hundred twenty-four million, eight hundred eighty-one thousand, forty-four".