30557372 has 12 divisors (see below), whose sum is σ = 53525136. Its totient is φ = 15264480.

The previous prime is 30557353. The next prime is 30557389. The reversal of 30557372 is 27375503.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (4460428).

Almost surely, 2^30557372 is an apocalyptic number.

It is an amenable number.

30557372 is a deficient number, since it is larger than the sum of its proper divisors (22967764).

30557372 is a wasteful number, since it uses less digits than its factorization.

30557372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7108 (or 7106 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 32.

The square root of 30557372 is about 5527.8722850659. The cubic root of 30557372 is about 312.6357707636.

The spelling of 30557372 in words is "thirty million, five hundred fifty-seven thousand, three hundred seventy-two".