400575936 has 56 divisors (see below), whose sum is σ = 1115649280. Its totient is φ = 126496512.

The previous prime is 400575911. The next prime is 400575979. The reversal of 400575936 is 639575004.

It is a super-2 number, since 2×400575936² = 320922161004552192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400575894 and 400575903.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 51256 + ... + 58551.

Almost surely, 2^400575936 is an apocalyptic number.

It is an amenable number.

400575936 is an abundant number, since it is smaller than the sum of its proper divisors (715073344).

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

400575936 is a wasteful number, since it uses less digits than its factorization.

400575936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109841 (or 109831 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 400575936 is about 20014.3932208798. The cubic root of 400575936 is about 737.1597578688.

The spelling of 400575936 in words is "four hundred million, five hundred seventy-five thousand, nine hundred thirty-six".