252949280388 has 72 divisors (see below), whose sum is σ = 690789006432. Its totient is φ = 71827814016.

The previous prime is 252949280351. The next prime is 252949280447. The reversal of 252949280388 is 883082949252.

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, 1223745 + ... + 1415432.

It is an arithmetic number, because the mean of its divisors is an integer number (9594291756).

Almost surely, 2^252949280388 is an apocalyptic number.

252949280388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

252949280388 is an abundant number, since it is smaller than the sum of its proper divisors (437839726044).

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

252949280388 is a wasteful number, since it uses less digits than its factorization.

252949280388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639361 (or 2639352 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 252949280388 in words is "two hundred fifty-two billion, nine hundred forty-nine million, two hundred eighty thousand, three hundred eighty-eight".