31496680 has 32 divisors (see below), whose sum is σ = 74599200. Its totient is φ = 11935296.

The previous prime is 31496677. The next prime is 31496693. The reversal of 31496680 is 8669413.

It is a Smith number, since the sum of its digits (37) 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, 19962 + ... + 21481.

It is an arithmetic number, because the mean of its divisors is an integer number (2331225).

Almost surely, 2^31496680 is an apocalyptic number.

It is an amenable number.

31496680 is an abundant number, since it is smaller than the sum of its proper divisors (43102520).

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

31496680 is a wasteful number, since it uses less digits than its factorization.

31496680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41473 (or 41469 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 31496680 is about 5612.1903032595. The cubic root of 31496680 is about 315.8068840888.

The spelling of 31496680 in words is "thirty-one million, four hundred ninety-six thousand, six hundred eighty".