252621308 has 12 divisors (see below), whose sum is σ = 442731912. Its totient is φ = 126126480.

The previous prime is 252621277. The next prime is 252621323. The reversal of 252621308 is 803126252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42935 + ... + 48462.

It is an arithmetic number, because the mean of its divisors is an integer number (36894326).

Almost surely, 2^252621308 is an apocalyptic number.

It is an amenable number.

252621308 is a deficient number, since it is larger than the sum of its proper divisors (190110604).

252621308 is a wasteful number, since it uses less digits than its factorization.

252621308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92092 (or 92090 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 252621308 is about 15894.0651816960. The cubic root of 252621308 is about 632.1546348903.

The spelling of 252621308 in words is "two hundred fifty-two million, six hundred twenty-one thousand, three hundred eight".