30507968 has 28 divisors (see below), whose sum is σ = 62496192. Its totient is φ = 14760960.

The previous prime is 30507931. The next prime is 30507973. The reversal of 30507968 is 86970503.

It is a super-2 number, since 2×30507968² = 1861472222978048, which contains 22 as substring.

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, 5705 + ... + 9672.

Almost surely, 2^30507968 is an apocalyptic number.

It is an amenable number.

30507968 is an abundant number, since it is smaller than the sum of its proper divisors (31988224).

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

30507968 is a wasteful number, since it uses less digits than its factorization.

30507968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15420 (or 15410 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 30507968 is about 5523.4018503093. The cubic root of 30507968 is about 312.4671939962.

The spelling of 30507968 in words is "thirty million, five hundred seven thousand, nine hundred sixty-eight".