252743808 has 32 divisors (see below), whose sum is σ = 671351760. Its totient is φ = 84247808.

The previous prime is 252743807. The next prime is 252743861. The reversal of 252743808 is 808347252.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (252743807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328710 + ... + 329477.

Almost surely, 2^252743808 is an apocalyptic number.

It is an amenable number.

252743808 is an abundant number, since it is smaller than the sum of its proper divisors (418607952).

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

252743808 is an equidigital number, since it uses as much as digits as its factorization.

252743808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658204 (or 658192 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 252743808 is about 15897.9183543004. The cubic root of 252743808 is about 632.2567989155.

The spelling of 252743808 in words is "two hundred fifty-two million, seven hundred forty-three thousand, eight hundred eight".