504018 has 12 divisors (see below), whose sum is σ = 1092078. Its totient is φ = 168000.

The previous prime is 504017. The next prime is 504047. The reversal of 504018 is 810405.

It can be written as a sum of positive squares in only one way, i.e., 393129 + 110889 = 627^2 + 333^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 28001 = 504018 / (5 + 0 + 4 + 0 + 1 + 8).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (504011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13983 + ... + 14018.

2⁵⁰⁴⁰¹⁸ is an apocalyptic number.

504018 is an abundant number, since it is smaller than the sum of its proper divisors (588060).

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

504018 is a wasteful number, since it uses less digits than its factorization.

504018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28009 (or 28006 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 504018 is about 709.9422511726. The cubic root of 504018 is about 79.5820915412.

The spelling of 504018 in words is "five hundred four thousand, eighteen".