400672264 has 8 divisors (see below), whose sum is σ = 751260510. Its totient is φ = 200336128.

The previous prime is 400672231. The next prime is 400672271. The reversal of 400672264 is 462276004.

It can be written as a sum of positive squares in only one way, i.e., 244672164 + 156000100 = 15642^2 + 12490^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 25042009 + ... + 25042024.

Almost surely, 2^400672264 is an apocalyptic number.

It is an amenable number.

400672264 is a deficient number, since it is larger than the sum of its proper divisors (350588246).

400672264 is a wasteful number, since it uses less digits than its factorization.

400672264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50084039 (or 50084035 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 400672264 is about 20016.7995443827. The cubic root of 400672264 is about 737.2188423249.

The spelling of 400672264 in words is "four hundred million, six hundred seventy-two thousand, two hundred sixty-four".