431402056 has 32 divisors (see below), whose sum is σ = 815601600. Its totient is φ = 213917760.

The previous prime is 431402039. The next prime is 431402071. The reversal of 431402056 is 650204134.

It is a super-2 number, since 2×431402056² = 372215467842054272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431402056.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797146 + ... + 797686.

It is an arithmetic number, because the mean of its divisors is an integer number (25487550).

Almost surely, 2^431402056 is an apocalyptic number.

It is an amenable number.

431402056 is a deficient number, since it is larger than the sum of its proper divisors (384199544).

431402056 is a wasteful number, since it uses less digits than its factorization.

431402056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 431402056 is about 20770.2204128892. The cubic root of 431402056 is about 755.6036900835.

The spelling of 431402056 in words is "four hundred thirty-one million, four hundred two thousand, fifty-six".