30948864 has 40 divisors (see below), whose sum is σ = 82453800. Its totient is φ = 10315776.

The previous prime is 30948859. The next prime is 30948871. The reversal of 30948864 is 46884903.

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, 8539 + ... + 11610.

It is an arithmetic number, because the mean of its divisors is an integer number (2061345).

Almost surely, 2^30948864 is an apocalyptic number.

It is an amenable number.

30948864 is an abundant number, since it is smaller than the sum of its proper divisors (51504936).

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

30948864 is an equidigital number, since it uses as much as digits as its factorization.

30948864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20170 (or 20154 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 30948864 is about 5563.1703191615. The cubic root of 30948864 is about 313.9652415310.

The spelling of 30948864 in words is "thirty million, nine hundred forty-eight thousand, eight hundred sixty-four".