252423688 has 16 divisors (see below), whose sum is σ = 516321360. Its totient is φ = 114738000.

The previous prime is 252423679. The next prime is 252423709. The reversal of 252423688 is 886324252.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 252423688.

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, 1434138 + ... + 1434313.

It is an arithmetic number, because the mean of its divisors is an integer number (32270085).

Almost surely, 2^252423688 is an apocalyptic number.

It is an amenable number.

252423688 is an abundant number, since it is smaller than the sum of its proper divisors (263897672).

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

252423688 is a wasteful number, since it uses less digits than its factorization.

252423688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868468 (or 2868464 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 252423688 is about 15887.8471795269. The cubic root of 252423688 is about 631.9897517432.

The spelling of 252423688 in words is "two hundred fifty-two million, four hundred twenty-three thousand, six hundred eighty-eight".