400606056 has 48 divisors (see below), whose sum is σ = 1119980160. Its totient is φ = 129227040.

The previous prime is 400606049. The next prime is 400606061. The reversal of 400606056 is 650606004.

400606056 is a `hidden beast` number, since 4 + 0 + 0 + 606 + 0 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87510 + ... + 91973.

It is an arithmetic number, because the mean of its divisors is an integer number (23332920).

Almost surely, 2^400606056 is an apocalyptic number.

It is an amenable number.

400606056 is an abundant number, since it is smaller than the sum of its proper divisors (719374104).

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

400606056 is a wasteful number, since it uses less digits than its factorization.

400606056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179526 (or 179519 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 400606056 is about 20015.1456652206. The cubic root of 400606056 is about 737.1782335130.

The spelling of 400606056 in words is "four hundred million, six hundred six thousand, fifty-six".