31318674 has 16 divisors (see below), whose sum is σ = 63038208. Its totient is φ = 10372752.

The previous prime is 31318621. The next prime is 31318691. The reversal of 31318674 is 47681313.

It is a super-2 number, since 2×31318674² = 1961718682236552, which contains 22 as substring.

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, 15682 + ... + 17565.

It is an arithmetic number, because the mean of its divisors is an integer number (3939888).

Almost surely, 2^31318674 is an apocalyptic number.

31318674 is an abundant number, since it is smaller than the sum of its proper divisors (31719534).

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

31318674 is a wasteful number, since it uses less digits than its factorization.

31318674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33409.

The product of its digits is 12096, while the sum is 33.

The square root of 31318674 is about 5596.3089621643. The cubic root of 31318674 is about 315.2108238465.

Adding to 31318674 its reverse (47681313), we get a palindrome (78999987).

The spelling of 31318674 in words is "thirty-one million, three hundred eighteen thousand, six hundred seventy-four".