252436856 has 32 divisors (see below), whose sum is σ = 541974240. Its totient is φ = 107979648.

The previous prime is 252436823. The next prime is 252436871. The reversal of 252436856 is 658634252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27146 + ... + 35238.

It is an arithmetic number, because the mean of its divisors is an integer number (16936695).

Almost surely, 2^252436856 is an apocalyptic number.

It is an amenable number.

252436856 is an abundant number, since it is smaller than the sum of its proper divisors (289537384).

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

252436856 is a wasteful number, since it uses less digits than its factorization.

252436856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663 (or 8659 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The square root of 252436856 is about 15888.2615789142. The cubic root of 252436856 is about 632.0007410663. Note that the first 3 decimals are identical.

The spelling of 252436856 in words is "two hundred fifty-two million, four hundred thirty-six thousand, eight hundred fifty-six".