504428 has 6 divisors (see below), whose sum is σ = 882756. Its totient is φ = 252212.

The previous prime is 504403. The next prime is 504457. The reversal of 504428 is 824405.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 63050 + ... + 63057.

It is an arithmetic number, because the mean of its divisors is an integer number (147126).

2⁵⁰⁴⁴²⁸ is an apocalyptic number.

It is an amenable number.

504428 is a deficient number, since it is larger than the sum of its proper divisors (378328).

504428 is a wasteful number, since it uses less digits than its factorization.

504428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126111 (or 126109 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 504428 is about 710.2309483541. The cubic root of 504428 is about 79.6036647219.

Subtracting from 504428 its sum of digits (23), we obtain a palindrome (504405).

The spelling of 504428 in words is "five hundred four thousand, four hundred twenty-eight".