31364372 has 48 divisors (see below), whose sum is σ = 61575360. Its totient is φ = 13968864.

The previous prime is 31364357. The next prime is 31364407. The reversal of 31364372 is 27346313.

It is a happy number.

It is a nialpdrome in base 13.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 377843 + ... + 377925.

It is an arithmetic number, because the mean of its divisors is an integer number (1282820).

Almost surely, 2^31364372 is an apocalyptic number.

It is an amenable number.

31364372 is a deficient number, since it is larger than the sum of its proper divisors (30210988).

31364372 is a wasteful number, since it uses less digits than its factorization.

31364372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 141 counting only the distinct ones).

The product of its digits is 9072, while the sum is 29.

The square root of 31364372 is about 5600.3903435386. The cubic root of 31364372 is about 315.3640604734.

The spelling of 31364372 in words is "thirty-one million, three hundred sixty-four thousand, three hundred seventy-two".