31604196 has 24 divisors (see below), whose sum is σ = 79416064. Its totient is φ = 9724320.

The previous prime is 31604191. The next prime is 31604219. The reversal of 31604196 is 69140613.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (31604191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101140 + ... + 101451.

Almost surely, 2^31604196 is an apocalyptic number.

It is an amenable number.

31604196 is an abundant number, since it is smaller than the sum of its proper divisors (47811868).

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

31604196 is a wasteful number, since it uses less digits than its factorization.

31604196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202611 (or 202609 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 31604196 is about 5621.7609340846. The cubic root of 31604196 is about 316.1658185435.

The spelling of 31604196 in words is "thirty-one million, six hundred four thousand, one hundred ninety-six".