252012404 has 24 divisors (see below), whose sum is σ = 516320448. Its totient is φ = 105370560.

The previous prime is 252012391. The next prime is 252012413. The reversal of 252012404 is 404210252.

It is a happy number.

It is a congruent number.

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, 108614 + ... + 110909.

It is an arithmetic number, because the mean of its divisors is an integer number (21513352).

Almost surely, 2^252012404 is an apocalyptic number.

It is an amenable number.

252012404 is an abundant number, since it is smaller than the sum of its proper divisors (264308044).

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

252012404 is a wasteful number, since it uses less digits than its factorization.

252012404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219575 (or 219573 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 252012404 is about 15874.8985508569. The cubic root of 252012404 is about 631.6463231041.

Adding to 252012404 its reverse (404210252), we get a palindrome (656222656).

The spelling of 252012404 in words is "two hundred fifty-two million, twelve thousand, four hundred four".