252190656 has 84 divisors (see below), whose sum is σ = 725436192. Its totient is φ = 83764224.

The previous prime is 252190643. The next prime is 252190661. The reversal of 252190656 is 656091252.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 252190656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210796 + ... + 211988.

Almost surely, 2^252190656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252190656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362718096).

252190656 is an abundant number, since it is smaller than the sum of its proper divisors (473245536).

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

252190656 is a wasteful number, since it uses less digits than its factorization.

252190656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 252190656 is about 15880.5118305425. The cubic root of 252190656 is about 631.7952121839.

The spelling of 252190656 in words is "two hundred fifty-two million, one hundred ninety thousand, six hundred fifty-six".