252909286 has 12 divisors (see below), whose sum is σ = 441301068. Its totient is φ = 108389652.

The previous prime is 252909277. The next prime is 252909301. The reversal of 252909286 is 682909252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1290256 + ... + 1290451.

It is an arithmetic number, because the mean of its divisors is an integer number (36775089).

Almost surely, 2^252909286 is an apocalyptic number.

252909286 is a deficient number, since it is larger than the sum of its proper divisors (188391782).

252909286 is a wasteful number, since it uses less digits than its factorization.

252909286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580723 (or 2580716 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 252909286 is about 15903.1218947727. The cubic root of 252909286 is about 632.3947538486.

The spelling of 252909286 in words is "two hundred fifty-two million, nine hundred nine thousand, two hundred eighty-six".