30213188 has 12 divisors (see below), whose sum is σ = 52955280. Its totient is φ = 15083112.

The previous prime is 30213163. The next prime is 30213193. The reversal of 30213188 is 88131203.

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, 2798 + ... + 8261.

It is an arithmetic number, because the mean of its divisors is an integer number (4412940).

Almost surely, 2^30213188 is an apocalyptic number.

It is an amenable number.

30213188 is a deficient number, since it is larger than the sum of its proper divisors (22742092).

30213188 is a wasteful number, since it uses less digits than its factorization.

30213188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11746 (or 11744 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 30213188 is about 5496.6524358013. The cubic root of 30213188 is about 311.4575414031.

The spelling of 30213188 in words is "thirty million, two hundred thirteen thousand, one hundred eighty-eight".