252404004 has 12 divisors (see below), whose sum is σ = 588942704. Its totient is φ = 84134664.

The previous prime is 252403979. The next prime is 252404051. The reversal of 252404004 is 400404252.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10516822 + ... + 10516845.

Almost surely, 2^252404004 is an apocalyptic number.

It is an amenable number.

252404004 is an abundant number, since it is smaller than the sum of its proper divisors (336538700).

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

252404004 is a wasteful number, since it uses less digits than its factorization.

252404004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21033674 (or 21033672 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 252404004 is about 15887.2277002629. The cubic root of 252404004 is about 631.9733237953.

Adding to 252404004 its reverse (400404252), we get a palindrome (652808256).

The spelling of 252404004 in words is "two hundred fifty-two million, four hundred four thousand, four".