252420872 has 32 divisors (see below), whose sum is σ = 534124800. Its totient is φ = 110779200.

The previous prime is 252420851. The next prime is 252420877. The reversal of 252420872 is 278024252.

It is not an unprimeable number, because it can be changed into a prime (252420877) 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, 46904 + ... + 52007.

It is an arithmetic number, because the mean of its divisors is an integer number (16691400).

Almost surely, 2^252420872 is an apocalyptic number.

252420872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

252420872 is an abundant number, since it is smaller than the sum of its proper divisors (281703928).

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

252420872 is a wasteful number, since it uses less digits than its factorization.

252420872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98957 (or 98953 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 252420872 is about 15887.7585580849. The cubic root of 252420872 is about 631.9874016075.

It can be divided in two parts, 252 and 420872, that added together give a palindrome (421124).

The spelling of 252420872 in words is "two hundred fifty-two million, four hundred twenty thousand, eight hundred seventy-two".