400800456928 has 24 divisors (see below), whose sum is σ = 789674220720. Its totient is φ = 200248273920.

The previous prime is 400800456913. The next prime is 400800456961. The reversal of 400800456928 is 829654008004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4705713 + ... + 4790128.

It is an arithmetic number, because the mean of its divisors is an integer number (32903092530).

Almost surely, 2^400800456928 is an apocalyptic number.

It is an amenable number.

400800456928 is a deficient number, since it is larger than the sum of its proper divisors (388873763792).

400800456928 is a wasteful number, since it uses less digits than its factorization.

400800456928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9497170 (or 9497162 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 400800456928 in words is "four hundred billion, eight hundred million, four hundred fifty-six thousand, nine hundred twenty-eight".