30924920 has 32 divisors (see below), whose sum is σ = 74934720. Its totient is φ = 11418240.

The previous prime is 30924877. The next prime is 30924923. The reversal of 30924920 is 2942903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30924923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29216 + ... + 30255.

It is an arithmetic number, because the mean of its divisors is an integer number (2341710).

Almost surely, 2^30924920 is an apocalyptic number.

It is an amenable number.

30924920 is an abundant number, since it is smaller than the sum of its proper divisors (44009800).

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

30924920 is a wasteful number, since it uses less digits than its factorization.

30924920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59495 (or 59491 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 30924920 is about 5561.0178924366. The cubic root of 30924920 is about 313.8842528473.

The spelling of 30924920 in words is "thirty million, nine hundred twenty-four thousand, nine hundred twenty".