404589 has 8 divisors (see below), whose sum is σ = 543520. Its totient is φ = 267696.

The previous prime is 404557. The next prime is 404597. The reversal of 404589 is 985404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 404589 - 2⁵ = 404557 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42 + ... + 900.

It is an arithmetic number, because the mean of its divisors is an integer number (67940).

2⁴⁰⁴⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

404589 is a deficient number, since it is larger than the sum of its proper divisors (138931).

404589 is a wasteful number, since it uses less digits than its factorization.

404589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 404589 is about 636.0731090056. The cubic root of 404589 is about 73.9613262736.

The spelling of 404589 in words is "four hundred four thousand, five hundred eighty-nine".