252609322 has 16 divisors (see below), whose sum is σ = 451873152. Its totient is φ = 103554000.

The previous prime is 252609311. The next prime is 252609347. The reversal of 252609322 is 223906252.

It is a happy number.

It is a super-2 number, since 2×252609322² = 127622939122599368, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 391929 + ... + 392572.

It is an arithmetic number, because the mean of its divisors is an integer number (28242072).

Almost surely, 2^252609322 is an apocalyptic number.

252609322 is a deficient number, since it is larger than the sum of its proper divisors (199263830).

252609322 is a wasteful number, since it uses less digits than its factorization.

252609322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784533.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 252609322 is about 15893.6881182437. The cubic root of 252609322 is about 632.1446368879.

The spelling of 252609322 in words is "two hundred fifty-two million, six hundred nine thousand, three hundred twenty-two".