400365004 has 24 divisors (see below), whose sum is σ = 758766960. Its totient is φ = 183747264.

The previous prime is 400364983. The next prime is 400365023. The reversal of 400365004 is 400563004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12199 + ... + 30814.

It is an arithmetic number, because the mean of its divisors is an integer number (31615290).

Almost surely, 2^400365004 is an apocalyptic number.

It is an amenable number.

400365004 is a deficient number, since it is larger than the sum of its proper divisors (358401956).

400365004 is a wasteful number, since it uses less digits than its factorization.

400365004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43209 (or 43207 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 400365004 is about 20009.1230192630. The cubic root of 400365004 is about 737.0303459659.

The spelling of 400365004 in words is "four hundred million, three hundred sixty-five thousand, four".