400056964 has 12 divisors (see below), whose sum is σ = 704147724. Its totient is φ = 198871904.

The previous prime is 400056959. The next prime is 400056977. The reversal of 400056964 is 469650004.

It can be written as a sum of positive squares in 2 ways, for example, as 230796864 + 169260100 = 15192^2 + 13010^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288367 + ... + 289750.

It is an arithmetic number, because the mean of its divisors is an integer number (58678977).

Almost surely, 2^400056964 is an apocalyptic number.

It is an amenable number.

400056964 is a deficient number, since it is larger than the sum of its proper divisors (304090760).

400056964 is a wasteful number, since it uses less digits than its factorization.

400056964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578294 (or 578292 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 400056964 is about 20001.4240493021. The cubic root of 400056964 is about 736.8412742629.

The spelling of 400056964 in words is "four hundred million, fifty-six thousand, nine hundred sixty-four".