30907372 has 12 divisors (see below), whose sum is σ = 55832896. Its totient is φ = 14955120.

The previous prime is 30907369. The next prime is 30907391. The reversal of 30907372 is 27370903.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124503 + ... + 124750.

Almost surely, 2^30907372 is an apocalyptic number.

It is an amenable number.

30907372 is a deficient number, since it is larger than the sum of its proper divisors (24925524).

30907372 is a wasteful number, since it uses less digits than its factorization.

30907372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249288 (or 249286 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 30907372 is about 5559.4398998460. The cubic root of 30907372 is about 313.8248715778.

The spelling of 30907372 in words is "thirty million, nine hundred seven thousand, three hundred seventy-two".