30918230 has 32 divisors (see below), whose sum is σ = 64419840. Its totient is φ = 10464480.

The previous prime is 30918229. The next prime is 30918241. The reversal of 30918230 is 3281903.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30918230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2735 + ... + 8325.

It is an arithmetic number, because the mean of its divisors is an integer number (2013120).

Almost surely, 2^30918230 is an apocalyptic number.

30918230 is an abundant number, since it is smaller than the sum of its proper divisors (33501610).

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

30918230 is a wasteful number, since it uses less digits than its factorization.

30918230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30918230 is about 5560.4163513176. The cubic root of 30918230 is about 313.8616169807.

The spelling of 30918230 in words is "thirty million, nine hundred eighteen thousand, two hundred thirty".