252004018 has 16 divisors (see below), whose sum is σ = 438456384. Its totient is φ = 106389360.

The previous prime is 252004009. The next prime is 252004021. The reversal of 252004018 is 810400252.

It is a self number, because there is not a number n which added to its sum of digits gives 252004018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133393 + ... + 135268.

It is an arithmetic number, because the mean of its divisors is an integer number (27403524).

Almost surely, 2^252004018 is an apocalyptic number.

252004018 is a deficient number, since it is larger than the sum of its proper divisors (186452366).

252004018 is a wasteful number, since it uses less digits than its factorization.

252004018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268737.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 252004018 is about 15874.6344209875. The cubic root of 252004018 is about 631.6393167760.

The spelling of 252004018 in words is "two hundred fifty-two million, four thousand, eighteen".