30111328 has 24 divisors (see below), whose sum is σ = 63842688. Its totient is φ = 13897344.

The previous prime is 30111271. The next prime is 30111353. The reversal of 30111328 is 82311103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35776 + ... + 36607.

It is an arithmetic number, because the mean of its divisors is an integer number (2660112).

Almost surely, 2^30111328 is an apocalyptic number.

It is an amenable number.

30111328 is an abundant number, since it is smaller than the sum of its proper divisors (33731360).

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

30111328 is a wasteful number, since it uses less digits than its factorization.

30111328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72406 (or 72398 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 30111328 is about 5487.3789736084. The cubic root of 30111328 is about 311.1071338872.

The spelling of 30111328 in words is "thirty million, one hundred eleven thousand, three hundred twenty-eight".