404604 has 18 divisors (see below), whose sum is σ = 1022840. Its totient is φ = 134856.

The previous prime is 404597. The next prime is 404671. The reversal of 404604 is 406404.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5584 + ... + 5655.

2⁴⁰⁴⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

404604 is an abundant number, since it is smaller than the sum of its proper divisors (618236).

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

404604 is a wasteful number, since it uses less digits than its factorization.

404604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11249 (or 11244 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 404604 is about 636.0848999937. The cubic root of 404604 is about 73.9622402926.

The spelling of 404604 in words is "four hundred four thousand, six hundred four".