252240324 has 24 divisors (see below), whose sum is σ = 672641088. Its totient is φ = 72068640.

The previous prime is 252240319. The next prime is 252240343. The reversal of 252240324 is 423042252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 252240294 and 252240303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501347 + ... + 1501514.

It is an arithmetic number, because the mean of its divisors is an integer number (28026712).

Almost surely, 2^252240324 is an apocalyptic number.

It is an amenable number.

252240324 is an abundant number, since it is smaller than the sum of its proper divisors (420400764).

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

252240324 is a wasteful number, since it uses less digits than its factorization.

252240324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002875 (or 3002873 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 252240324 is about 15882.0755570549. The cubic root of 252240324 is about 631.8366860239.

Adding to 252240324 its reverse (423042252), we get a palindrome (675282576).

The spelling of 252240324 in words is "two hundred fifty-two million, two hundred forty thousand, three hundred twenty-four".