31371368 has 48 divisors (see below), whose sum is σ = 68947200. Its totient is φ = 13342560.

The previous prime is 31371331. The next prime is 31371371. The reversal of 31371368 is 86317313.

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 11 ways as a sum of consecutive naturals, for example, 74663 + ... + 75081.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 2^31371368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31371368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34473600).

31371368 is an abundant number, since it is smaller than the sum of its proper divisors (37575832).

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

31371368 is a wasteful number, since it uses less digits than its factorization.

31371368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 619 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 31371368 is about 5601.0149080323. The cubic root of 31371368 is about 315.3875066408.

The spelling of 31371368 in words is "thirty-one million, three hundred seventy-one thousand, three hundred sixty-eight".