252209168 has 40 divisors (see below), whose sum is σ = 523710528. Its totient is φ = 117355392.

The previous prime is 252209117. The next prime is 252209227. The reversal of 252209168 is 861902252.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4355 + ... + 22877.

Almost surely, 2^252209168 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 252209168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261855264).

252209168 is an abundant number, since it is smaller than the sum of its proper divisors (271501360).

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

252209168 is a wasteful number, since it uses less digits than its factorization.

252209168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18591 (or 18585 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 252209168 is about 15881.0946725974. The cubic root of 252209168 is about 631.8106707355.

The spelling of 252209168 in words is "two hundred fifty-two million, two hundred nine thousand, one hundred sixty-eight".