31948680 has 32 divisors (see below), whose sum is σ = 95846400. Its totient is φ = 8519616.

The previous prime is 31948667. The next prime is 31948681. The reversal of 31948680 is 8684913.

It is not an unprimeable number, because it can be changed into a prime (31948681) 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, 133000 + ... + 133239.

It is an arithmetic number, because the mean of its divisors is an integer number (2995200).

Almost surely, 2^31948680 is an apocalyptic number.

31948680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31948680 is an abundant number, since it is smaller than the sum of its proper divisors (63897720).

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

31948680 is a wasteful number, since it uses less digits than its factorization.

31948680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266253 (or 266249 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 31948680 is about 5652.3163393427. The cubic root of 31948680 is about 317.3103999543.

The spelling of 31948680 in words is "thirty-one million, nine hundred forty-eight thousand, six hundred eighty".