504028 has 24 divisors (see below), whose sum is σ = 1032192. Its totient is φ = 210864.

The previous prime is 504017. The next prime is 504047. The reversal of 504028 is 820405.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 503996 and 504014.

It is a congruent number.

It is an unprimeable number.

504028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125 + ... + 1507.

It is an arithmetic number, because the mean of its divisors is an integer number (43008).

2⁵⁰⁴⁰²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 504028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516096).

504028 is an abundant number, since it is smaller than the sum of its proper divisors (528164).

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

504028 is a wasteful number, since it uses less digits than its factorization.

504028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 504028 is about 709.9492939640. The cubic root of 504028 is about 79.5826178555.

The spelling of 504028 in words is "five hundred four thousand, twenty-eight".