30057172 has 24 divisors (see below), whose sum is σ = 55289696. Its totient is φ = 14279328.

The previous prime is 30057163. The next prime is 30057187. The reversal of 30057172 is 27175003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4003 + ... + 8725.

Almost surely, 2^30057172 is an apocalyptic number.

It is an amenable number.

30057172 is a deficient number, since it is larger than the sum of its proper divisors (25232524).

30057172 is a wasteful number, since it uses less digits than its factorization.

30057172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807 (or 4805 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 30057172 is about 5482.4421565576. The cubic root of 30057172 is about 310.9205105588.

The spelling of 30057172 in words is "thirty million, fifty-seven thousand, one hundred seventy-two".