252866280 has 64 divisors (see below), whose sum is σ = 761400000. Its totient is φ = 67182080.

The previous prime is 252866267. The next prime is 252866291. The reversal of 252866280 is 82668252.

It is a super-2 number, since 2×252866280² = 127882711122076800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29971 + ... + 37469.

It is an arithmetic number, because the mean of its divisors is an integer number (11896875).

Almost surely, 2^252866280 is an apocalyptic number.

252866280 is a gapful number since it is divisible by the number (20) 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 252866280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380700000).

252866280 is an abundant number, since it is smaller than the sum of its proper divisors (508533720).

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

252866280 is a wasteful number, since it uses less digits than its factorization.

252866280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7794 (or 7790 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 252866280 is about 15901.7697128339. The cubic root of 252866280 is about 632.3589065943.

The spelling of 252866280 in words is "two hundred fifty-two million, eight hundred sixty-six thousand, two hundred eighty".