252193768 has 16 divisors (see below), whose sum is σ = 477546660. Its totient is φ = 124848000.

The previous prime is 252193751. The next prime is 252193771. The reversal of 252193768 is 867391252.

It can be written as a sum of positive squares in 2 ways, for example, as 178543044 + 73650724 = 13362^2 + 8582^2 .

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 3 ways as a sum of consecutive naturals, for example, 155253 + ... + 156868.

Almost surely, 2^252193768 is an apocalyptic number.

It is an amenable number.

252193768 is a deficient number, since it is larger than the sum of its proper divisors (225352892).

252193768 is a wasteful number, since it uses less digits than its factorization.

252193768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312228 (or 312224 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The square root of 252193768 is about 15880.6098119688. The cubic root of 252193768 is about 631.7978109302.

The spelling of 252193768 in words is "two hundred fifty-two million, one hundred ninety-three thousand, seven hundred sixty-eight".