252424 has 16 divisors (see below), whose sum is σ = 478800. Its totient is φ = 124752.

The previous prime is 252419. The next prime is 252431. The reversal of 252424 is 424252.

It is an unprimeable number.

252424 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999 + ... + 1225.

It is an arithmetic number, because the mean of its divisors is an integer number (29925).

2²⁵²⁴²⁴ is an apocalyptic number.

It is an amenable number.

252424 is a deficient number, since it is larger than the sum of its proper divisors (226376).

252424 is a wasteful number, since it uses less digits than its factorization.

252424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 368 counting only the distinct ones).

The product of its digits is 640, while the sum is 19.

The square root of 252424 is about 502.4181525383. The cubic root of 252424 is about 63.1990012127.

Subtracting from 252424 its sum of digits (19), we obtain a triangular number (252405 = T₇₁₀).

Adding to 252424 its reverse (424252), we get a palindrome (676676).

It can be divided in two parts, 252 and 424, that added together give a palindrome (676).

The spelling of 252424 in words is "two hundred fifty-two thousand, four hundred twenty-four".