400804052 has 12 divisors (see below), whose sum is σ = 765171456. Its totient is φ = 182183640.

The previous prime is 400804039. The next prime is 400804111. The reversal of 400804052 is 250408004.

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, 4554548 + ... + 4554635.

It is an arithmetic number, because the mean of its divisors is an integer number (63764288).

Almost surely, 2^400804052 is an apocalyptic number.

It is an amenable number.

400804052 is a deficient number, since it is larger than the sum of its proper divisors (364367404).

400804052 is a wasteful number, since it uses less digits than its factorization.

400804052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9109198 (or 9109196 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 400804052 is about 20020.0912085834. The cubic root of 400804052 is about 737.2996614510.

The spelling of 400804052 in words is "four hundred million, eight hundred four thousand, fifty-two".