31968328 has 32 divisors (see below), whose sum is σ = 69802560. Its totient is φ = 13440960.

The previous prime is 31968301. The next prime is 31968359. The reversal of 31968328 is 82386913.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2418 + ... + 8353.

It is an arithmetic number, because the mean of its divisors is an integer number (2181330).

Almost surely, 2^31968328 is an apocalyptic number.

It is an amenable number.

31968328 is an abundant number, since it is smaller than the sum of its proper divisors (37834232).

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

31968328 is a wasteful number, since it uses less digits than its factorization.

31968328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10837 (or 10833 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 31968328 is about 5654.0541207173. The cubic root of 31968328 is about 317.3754338057.

The spelling of 31968328 in words is "thirty-one million, nine hundred sixty-eight thousand, three hundred twenty-eight".