504408 has 16 divisors (see below), whose sum is σ = 1261080. Its totient is φ = 168128.

The previous prime is 504403. The next prime is 504457. The reversal of 504408 is 804405.

It is a congruent number.

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

504408 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10485 + ... + 10532.

2⁵⁰⁴⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

504408 is an abundant number, since it is smaller than the sum of its proper divisors (756672).

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

504408 is a wasteful number, since it uses less digits than its factorization.

504408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21026 (or 21022 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 504408 is about 710.2168682874. The cubic root of 504408 is about 79.6026126429.

The spelling of 504408 in words is "five hundred four thousand, four hundred eight".