31342856 has 16 divisors (see below), whose sum is σ = 61861200. Its totient is φ = 14846544.

The previous prime is 31342853. The next prime is 31342877. The reversal of 31342856 is 65824313.

It is not an unprimeable number, because it can be changed into a prime (31342853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102950 + ... + 103253.

It is an arithmetic number, because the mean of its divisors is an integer number (3866325).

Almost surely, 2^31342856 is an apocalyptic number.

It is an amenable number.

31342856 is a deficient number, since it is larger than the sum of its proper divisors (30518344).

31342856 is a wasteful number, since it uses less digits than its factorization.

31342856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206228 (or 206224 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 31342856 is about 5598.4690764530. The cubic root of 31342856 is about 315.2919305919.

The spelling of 31342856 in words is "thirty-one million, three hundred forty-two thousand, eight hundred fifty-six".