30480872 has 16 divisors (see below), whose sum is σ = 57226500. Its totient is φ = 15220480.

The previous prime is 30480871. The next prime is 30480887. The reversal of 30480872 is 27808403.

It can be written as a sum of positive squares in 2 ways, for example, as 30316036 + 164836 = 5506^2 + 406^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30480871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5504 + ... + 9552.

Almost surely, 2^30480872 is an apocalyptic number.

It is an amenable number.

30480872 is a deficient number, since it is larger than the sum of its proper divisors (26745628).

30480872 is a wasteful number, since it uses less digits than its factorization.

30480872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996 (or 4992 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 30480872 is about 5520.9484692397. The cubic root of 30480872 is about 312.3746594939.

The spelling of 30480872 in words is "thirty million, four hundred eighty thousand, eight hundred seventy-two".