30939080 has 32 divisors (see below), whose sum is σ = 70459200. Its totient is φ = 12225216.

The previous prime is 30939053. The next prime is 30939101. The reversal of 30939080 is 8093903.

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, 1340 + ... + 7979.

It is an arithmetic number, because the mean of its divisors is an integer number (2201850).

Almost surely, 2^30939080 is an apocalyptic number.

It is an amenable number.

30939080 is an abundant number, since it is smaller than the sum of its proper divisors (39520120).

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

30939080 is a wasteful number, since it uses less digits than its factorization.

30939080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9413 (or 9409 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 30939080 is about 5562.2908949461. The cubic root of 30939080 is about 313.9321529747.

The spelling of 30939080 in words is "thirty million, nine hundred thirty-nine thousand, eighty".