252368538 has 8 divisors (see below), whose sum is σ = 504737088. Its totient is φ = 84122844.

The previous prime is 252368497. The next prime is 252368549. The reversal of 252368538 is 835863252.

It is a sphenic number, since it is the product of 3 distinct primes.

252368538 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 252368538.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21030706 + ... + 21030717.

It is an arithmetic number, because the mean of its divisors is an integer number (63092136).

Almost surely, 2^252368538 is an apocalyptic number.

252368538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252368538 is a wasteful number, since it uses less digits than its factorization.

252368538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42061428.

The product of its digits is 345600, while the sum is 42.

The square root of 252368538 is about 15886.1114814167. Note that the first 3 decimals coincide. The cubic root of 252368538 is about 631.9437222894.

The spelling of 252368538 in words is "two hundred fifty-two million, three hundred sixty-eight thousand, five hundred thirty-eight".