400996928 has 28 divisors (see below), whose sum is σ = 796424112. Its totient is φ = 200323200.

The previous prime is 400996907. The next prime is 400996931. The reversal of 400996928 is 829699004.

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, 102203 + ... + 106053.

Almost surely, 2^400996928 is an apocalyptic number.

It is an amenable number.

400996928 is a deficient number, since it is larger than the sum of its proper divisors (395427184).

400996928 is a wasteful number, since it uses less digits than its factorization.

400996928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490 (or 5480 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 400996928 is about 20024.9076901743. The cubic root of 400996928 is about 737.4179109245.

The spelling of 400996928 in words is "four hundred million, nine hundred ninety-six thousand, nine hundred twenty-eight".