252438188 has 12 divisors (see below), whose sum is σ = 446141472. Its totient is φ = 124969200.

The previous prime is 252438181. The next prime is 252438203. The reversal of 252438188 is 881834252.

252438188 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (252438181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312020 + ... + 312827.

It is an arithmetic number, because the mean of its divisors is an integer number (37178456).

Almost surely, 2^252438188 is an apocalyptic number.

It is an amenable number.

252438188 is a deficient number, since it is larger than the sum of its proper divisors (193703284).

252438188 is a wasteful number, since it uses less digits than its factorization.

252438188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624952 (or 624950 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 252438188 is about 15888.3034965977. The cubic root of 252438188 is about 632.0018526624.

The spelling of 252438188 in words is "two hundred fifty-two million, four hundred thirty-eight thousand, one hundred eighty-eight".