252420492 has 48 divisors (see below), whose sum is σ = 628911360. Its totient is φ = 78606528.

The previous prime is 252420473. The next prime is 252420523. The reversal of 252420492 is 294024252.

It is a super-2 number, since 2×252420492² = 127432209563044128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1234 + ... + 22502.

It is an arithmetic number, because the mean of its divisors is an integer number (13102320).

Almost surely, 2^252420492 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 252420492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314455680).

252420492 is an abundant number, since it is smaller than the sum of its proper divisors (376490868).

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

252420492 is a wasteful number, since it uses less digits than its factorization.

252420492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21342 (or 21340 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 252420492 is about 15887.7465991877. The cubic root of 252420492 is about 631.9870844714.

The spelling of 252420492 in words is "two hundred fifty-two million, four hundred twenty thousand, four hundred ninety-two".