30731364 has 36 divisors (see below), whose sum is σ = 77946960. Its totient is φ = 10208880.

The previous prime is 30731339. The next prime is 30731377. The reversal of 30731364 is 46313703.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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, 10627 + ... + 13205.

Almost surely, 2^30731364 is an apocalyptic number.

It is an amenable number.

30731364 is an abundant number, since it is smaller than the sum of its proper divisors (47215596).

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

30731364 is a wasteful number, since it uses less digits than its factorization.

30731364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920 (or 2915 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 30731364 is about 5543.5876470026. The cubic root of 30731364 is about 313.2280250706.

The spelling of 30731364 in words is "thirty million, seven hundred thirty-one thousand, three hundred sixty-four".