252689736 has 32 divisors (see below), whose sum is σ = 680319360. Its totient is φ = 77750592.

The previous prime is 252689729. The next prime is 252689737. The reversal of 252689736 is 637986252.

It is not an unprimeable number, because it can be changed into a prime (252689737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404640 + ... + 405263.

It is an arithmetic number, because the mean of its divisors is an integer number (21259980).

Almost surely, 2^252689736 is an apocalyptic number.

252689736 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

252689736 is an abundant number, since it is smaller than the sum of its proper divisors (427629624).

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

252689736 is a wasteful number, since it uses less digits than its factorization.

252689736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809925 (or 809921 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 252689736 is about 15896.2176633311. The cubic root of 252689736 is about 632.2117073684.

The spelling of 252689736 in words is "two hundred fifty-two million, six hundred eighty-nine thousand, seven hundred thirty-six".