31486196 has 24 divisors (see below), whose sum is σ = 64510656. Its totient is φ = 13164480.

The previous prime is 31486163. The next prime is 31486201. The reversal of 31486196 is 69168413.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 12566 + ... + 14861.

It is an arithmetic number, because the mean of its divisors is an integer number (2687944).

Almost surely, 2^31486196 is an apocalyptic number.

It is an amenable number.

31486196 is an abundant number, since it is smaller than the sum of its proper divisors (33024460).

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

31486196 is a wasteful number, since it uses less digits than its factorization.

31486196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27479 (or 27477 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 31486196 is about 5611.2561873434. The cubic root of 31486196 is about 315.7718403234.

The spelling of 31486196 in words is "thirty-one million, four hundred eighty-six thousand, one hundred ninety-six".