252440858 has 16 divisors (see below), whose sum is σ = 387146304. Its totient is φ = 123420000.

The previous prime is 252440857. The next prime is 252440861. The reversal of 252440858 is 858044252.

It is not an unprimeable number, because it can be changed into a prime (252440857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11483 + ... + 25233.

It is an arithmetic number, because the mean of its divisors is an integer number (24196644).

Almost surely, 2^252440858 is an apocalyptic number.

252440858 is a deficient number, since it is larger than the sum of its proper divisors (134705446).

252440858 is a wasteful number, since it uses less digits than its factorization.

252440858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13957.

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 252440858 is about 15888.3875204503. The cubic root of 252440858 is about 632.0040808501.

The spelling of 252440858 in words is "two hundred fifty-two million, four hundred forty thousand, eight hundred fifty-eight".