30252188 has 12 divisors (see below), whose sum is σ = 53940600. Its totient is φ = 14840592.

The previous prime is 30252169. The next prime is 30252193. The reversal of 30252188 is 88125203.

It is a self number, because there is not a number n which added to its sum of digits gives 30252188.

It is a congruent number.

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, 71138 + ... + 71561.

It is an arithmetic number, because the mean of its divisors is an integer number (4495050).

Almost surely, 2^30252188 is an apocalyptic number.

It is an amenable number.

30252188 is a deficient number, since it is larger than the sum of its proper divisors (23688412).

30252188 is a wasteful number, since it uses less digits than its factorization.

30252188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142756 (or 142754 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 30252188 is about 5500.1989054942. The cubic root of 30252188 is about 311.5914963873.

The spelling of 30252188 in words is "thirty million, two hundred fifty-two thousand, one hundred eighty-eight".