404579 has 8 divisors (see below), whose sum is σ = 478560. Its totient is φ = 334656.

The previous prime is 404557. The next prime is 404597. The reversal of 404579 is 975404.

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

It is not a de Polignac number, because 404579 - 2⁸ = 404323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian 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, 794 + ... + 1199.

It is an arithmetic number, because the mean of its divisors is an integer number (59820).

2⁴⁰⁴⁵⁷⁹ is an apocalyptic number.

404579 is a deficient number, since it is larger than the sum of its proper divisors (73981).

404579 is a wasteful number, since it uses less digits than its factorization.

404579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 404579 is about 636.0652482254. The cubic root of 404579 is about 73.9607169150.

Subtracting from 404579 its sum of digits (29), we obtain a triangular number (404550 = T₈₉₉).

The spelling of 404579 in words is "four hundred four thousand, five hundred seventy-nine".