31364168 has 24 divisors (see below), whose sum is σ = 64641990. Its totient is φ = 14256000.

The previous prime is 31364153. The next prime is 31364189. The reversal of 31364168 is 86146313.

It can be written as a sum of positive squares in only one way, i.e., 15856324 + 15507844 = 3982^2 + 3938^2 .

It is a super-2 number, since 2×31364168² = 1967422068664448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15233 + ... + 17168.

Almost surely, 2^31364168 is an apocalyptic number.

It is an amenable number.

31364168 is an abundant number, since it is smaller than the sum of its proper divisors (33277822).

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

31364168 is a wasteful number, since it uses less digits than its factorization.

31364168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32429 (or 32414 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 31364168 is about 5600.3721304928. The cubic root of 31364168 is about 315.3633767421.

The spelling of 31364168 in words is "thirty-one million, three hundred sixty-four thousand, one hundred sixty-eight".