30506672 has 20 divisors (see below), whose sum is σ = 67550736. Its totient is φ = 13074240.

The previous prime is 30506639. The next prime is 30506689. The reversal of 30506672 is 27660503.

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, 136079 + ... + 136302.

Almost surely, 2^30506672 is an apocalyptic number.

It is an amenable number.

30506672 is an abundant number, since it is smaller than the sum of its proper divisors (37044064).

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

30506672 is a wasteful number, since it uses less digits than its factorization.

30506672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272396 (or 272390 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 30506672 is about 5523.2845300600. The cubic root of 30506672 is about 312.4627693246.

The spelling of 30506672 in words is "thirty million, five hundred six thousand, six hundred seventy-two".