585404 has 12 divisors (see below), whose sum is σ = 1057728. Its totient is φ = 283200.

The previous prime is 585391. The next prime is 585413. The reversal of 585404 is 404585.

585404 = 267² + 268² + ... + 274².

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 585404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237 + ... + 2484.

It is an arithmetic number, because the mean of its divisors is an integer number (88144).

2⁵⁸⁵⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

585404 is a deficient number, since it is larger than the sum of its proper divisors (472324).

585404 is a wasteful number, since it uses less digits than its factorization.

585404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4756 (or 4754 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 585404 is about 765.1169845194. The cubic root of 585404 is about 83.6537142499.

Adding to 585404 its reverse (404585), we get a palindrome (989989).

It can be divided in two parts, 585 and 404, that added together give a palindrome (989).

The spelling of 585404 in words is "five hundred eighty-five thousand, four hundred four".