252644392 has 96 divisors (see below), whose sum is σ = 647529120. Its totient is φ = 90840960.

The previous prime is 252644363. The next prime is 252644401. The reversal of 252644392 is 293446252.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53803 + ... + 58309.

It is an arithmetic number, because the mean of its divisors is an integer number (6745095).

Almost surely, 2^252644392 is an apocalyptic number.

252644392 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252644392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323764560).

252644392 is an abundant number, since it is smaller than the sum of its proper divisors (394884728).

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

252644392 is a wasteful number, since it uses less digits than its factorization.

252644392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4551 (or 4540 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 252644392 is about 15894.7913481115. The cubic root of 252644392 is about 632.1738892876.

The spelling of 252644392 in words is "two hundred fifty-two million, six hundred forty-four thousand, three hundred ninety-two".