30118528 has 32 divisors (see below), whose sum is σ = 65459520. Its totient is φ = 13689600.

The previous prime is 30118519. The next prime is 30118531. The reversal of 30118528 is 82581103.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 30118496 and 30118505.

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, 9288 + ... + 12103.

It is an arithmetic number, because the mean of its divisors is an integer number (2045610).

Almost surely, 2^30118528 is an apocalyptic number.

It is an amenable number.

30118528 is an abundant number, since it is smaller than the sum of its proper divisors (35340992).

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

30118528 is a wasteful number, since it uses less digits than its factorization.

30118528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21416 (or 21404 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 30118528 is about 5488.0349853112. The cubic root of 30118528 is about 311.1319284634.

The spelling of 30118528 in words is "thirty million, one hundred eighteen thousand, five hundred twenty-eight".