252812406 has 64 divisors (see below), whose sum is σ = 667491840. Its totient is φ = 61800960.

The previous prime is 252812383. The next prime is 252812407. The reversal of 252812406 is 604218252.

It is a super-2 number, since 2×252812406² = 127828225255017672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252812407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8241 + ... + 23948.

It is an arithmetic number, because the mean of its divisors is an integer number (10429560).

Almost surely, 2^252812406 is an apocalyptic number.

252812406 is an abundant number, since it is smaller than the sum of its proper divisors (414679434).

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

252812406 is a wasteful number, since it uses less digits than its factorization.

252812406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32229.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 252812406 is about 15900.0756601973. The cubic root of 252812406 is about 632.3139946835.

The spelling of 252812406 in words is "two hundred fifty-two million, eight hundred twelve thousand, four hundred six".