252790286 has 32 divisors (see below), whose sum is σ = 453219840. Its totient is φ = 103394016.

The previous prime is 252790277. The next prime is 252790301. The reversal of 252790286 is 682097252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266465 + ... + 267411.

It is an arithmetic number, because the mean of its divisors is an integer number (14163120).

Almost surely, 2^252790286 is an apocalyptic number.

252790286 is a deficient number, since it is larger than the sum of its proper divisors (200429554).

252790286 is a wasteful number, since it uses less digits than its factorization.

252790286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 252790286 is about 15899.3800508070. The cubic root of 252790286 is about 632.2955525591.

The spelling of 252790286 in words is "two hundred fifty-two million, seven hundred ninety thousand, two hundred eighty-six".