252399994 has 32 divisors (see below), whose sum is σ = 480038400. Its totient is φ = 96667440.

The previous prime is 252399967. The next prime is 252399997. The reversal of 252399994 is 499993252.

It is not an unprimeable number, because it can be changed into a prime (252399997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4804 + ... + 22975.

It is an arithmetic number, because the mean of its divisors is an integer number (15001200).

Almost surely, 2^252399994 is an apocalyptic number.

252399994 is a deficient number, since it is larger than the sum of its proper divisors (227638406).

252399994 is a wasteful number, since it uses less digits than its factorization.

252399994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27858.

The product of its digits is 1574640, while the sum is 52.

The square root of 252399994 is about 15887.1014977560. The cubic root of 252399994 is about 631.9699770094.

The spelling of 252399994 in words is "two hundred fifty-two million, three hundred ninety-nine thousand, nine hundred ninety-four".