30109972 has 12 divisors (see below), whose sum is σ = 52788736. Its totient is φ = 15027480.

The previous prime is 30109969. The next prime is 30109987. The reversal of 30109972 is 27990103.

It is a super-2 number, since 2×30109972² = 1813220827681568, which contains 22 as substring.

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 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, 4308 + ... + 8875.

Almost surely, 2^30109972 is an apocalyptic number.

It is an amenable number.

30109972 is a deficient number, since it is larger than the sum of its proper divisors (22678764).

30109972 is a wasteful number, since it uses less digits than its factorization.

30109972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13758 (or 13756 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 30109972 is about 5487.2554159616. The cubic root of 30109972 is about 311.1024637997.

The spelling of 30109972 in words is "thirty million, one hundred nine thousand, nine hundred seventy-two".