252388686 has 32 divisors (see below), whose sum is σ = 553104000. Its totient is φ = 76142880.

The previous prime is 252388679. The next prime is 252388693. The reversal of 252388686 is 686883252.

252388686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252388679) and next prime (252388693).

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, 6765 + ... + 23463.

It is an arithmetic number, because the mean of its divisors is an integer number (17284500).

Almost surely, 2^252388686 is an apocalyptic number.

252388686 is an abundant number, since it is smaller than the sum of its proper divisors (300715314).

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

252388686 is a wasteful number, since it uses less digits than its factorization.

252388686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16944.

The product of its digits is 1105920, while the sum is 48.

The square root of 252388686 is about 15886.7456075812. The cubic root of 252388686 is about 631.9605390493.

The spelling of 252388686 in words is "two hundred fifty-two million, three hundred eighty-eight thousand, six hundred eighty-six".