400655796 has 24 divisors (see below), whose sum is σ = 989856000. Its totient is φ = 125695872.

The previous prime is 400655767. The next prime is 400655803. The reversal of 400655796 is 697556004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981796 + ... + 982203.

It is an arithmetic number, because the mean of its divisors is an integer number (41244000).

Almost surely, 2^400655796 is an apocalyptic number.

It is an amenable number.

400655796 is an abundant number, since it is smaller than the sum of its proper divisors (589200204).

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

400655796 is a wasteful number, since it uses less digits than its factorization.

400655796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964023 (or 1964021 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 400655796 is about 20016.3881856842. The cubic root of 400655796 is about 737.2087420615.

The spelling of 400655796 in words is "four hundred million, six hundred fifty-five thousand, seven hundred ninety-six".