252312432 has 20 divisors (see below), whose sum is σ = 651807240. Its totient is φ = 84104128.

The previous prime is 252312397. The next prime is 252312449. The reversal of 252312432 is 234213252.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2628207 + ... + 2628302.

It is an arithmetic number, because the mean of its divisors is an integer number (32590362).

Almost surely, 2^252312432 is an apocalyptic number.

It is an amenable number.

252312432 is an abundant number, since it is smaller than the sum of its proper divisors (399494808).

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

252312432 is a wasteful number, since it uses less digits than its factorization.

252312432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256520 (or 5256514 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 252312432 is about 15884.3455011530. The cubic root of 252312432 is about 631.8968880544.

Adding to 252312432 its reverse (234213252), we get a palindrome (486525684).

The spelling of 252312432 in words is "two hundred fifty-two million, three hundred twelve thousand, four hundred thirty-two".