252229590 has 24 divisors (see below), whose sum is σ = 655797168. Its totient is φ = 67261200.

The previous prime is 252229553. The next prime is 252229591. The reversal of 252229590 is 95922252.

252229590 is a `hidden beast` number, since 25 + 22 + 29 + 590 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252229591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401186 + ... + 1401365.

It is an arithmetic number, because the mean of its divisors is an integer number (27324882).

Almost surely, 2^252229590 is an apocalyptic number.

252229590 is an abundant number, since it is smaller than the sum of its proper divisors (403567578).

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

252229590 is a wasteful number, since it uses less digits than its factorization.

252229590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802564 (or 2802561 counting only the distinct ones).

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

The square root of 252229590 is about 15881.7376253356. The cubic root of 252229590 is about 631.8277233660.

The spelling of 252229590 in words is "two hundred fifty-two million, two hundred twenty-nine thousand, five hundred ninety".