252324405 has 12 divisors (see below), whose sum is σ = 437362380. Its totient is φ = 134572992.

The previous prime is 252324377. The next prime is 252324419. The reversal of 252324405 is 504423252.

It is a happy number.

252324405 is a `hidden beast` number, since 25 + 232 + 4 + 405 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 77053284 + 175271121 = 8778^2 + 13239^2 .

It is not a de Polignac number, because 252324405 - 2¹² = 252320309 is a prime.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2803560 + ... + 2803649.

It is an arithmetic number, because the mean of its divisors is an integer number (36446865).

Almost surely, 2^252324405 is an apocalyptic number.

It is an amenable number.

252324405 is a deficient number, since it is larger than the sum of its proper divisors (185037975).

252324405 is a wasteful number, since it uses less digits than its factorization.

252324405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607220 (or 5607217 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 252324405 is about 15884.7223771774. The cubic root of 252324405 is about 631.9068830458.

Adding to 252324405 its reverse (504423252), we get a palindrome (756747657).

The spelling of 252324405 in words is "two hundred fifty-two million, three hundred twenty-four thousand, four hundred five".