504404 has 12 divisors (see below), whose sum is σ = 901824. Its totient is φ = 246744.

The previous prime is 504403. The next prime is 504457. The reversal of 504404 is 404405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (75152).

2⁵⁰⁴⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

504404 is a deficient number, since it is larger than the sum of its proper divisors (397420).

504404 is a wasteful number, since it uses less digits than its factorization.

504404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 504404 is about 710.2140522406. The cubic root of 504404 is about 79.6024022237.

Adding to 504404 its reverse (404405), we get a palindrome (908809).

Subtracting from 504404 its reverse (404405), we obtain a palindrome (99999).

The spelling of 504404 in words is "five hundred four thousand, four hundred four".