252423132 has 72 divisors (see below), whose sum is σ = 671448960. Its totient is φ = 73569600.

The previous prime is 252423109. The next prime is 252423179. The reversal of 252423132 is 231324252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35257 + ... + 41807.

It is an arithmetic number, because the mean of its divisors is an integer number (9325680).

Almost surely, 2^252423132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252423132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335724480).

252423132 is an abundant number, since it is smaller than the sum of its proper divisors (419025828).

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

252423132 is a wasteful number, since it uses less digits than its factorization.

252423132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6603 (or 6588 counting only the distinct ones).

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

The square root of 252423132 is about 15887.8296818666. The cubic root of 252423132 is about 631.9892877264.

Adding to 252423132 its reverse (231324252), we get a palindrome (483747384).

The spelling of 252423132 in words is "two hundred fifty-two million, four hundred twenty-three thousand, one hundred thirty-two".