500404 has 6 divisors (see below), whose sum is σ = 875714. Its totient is φ = 250200.

The previous prime is 500393. The next prime is 500413. The reversal of 500404 is 404005.

It can be written as a sum of positive squares in only one way, i.e., 490000 + 10404 = 700^2 + 102^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62547 + ... + 62554.

2⁵⁰⁰⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

500404 is a deficient number, since it is larger than the sum of its proper divisors (375310).

500404 is a wasteful number, since it uses less digits than its factorization.

500404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125105 (or 125103 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 500404 is about 707.3923946439. The cubic root of 500404 is about 79.3914238443.

Adding to 500404 its reverse (404005), we get a palindrome (904409).

The spelling of 500404 in words is "five hundred thousand, four hundred four".