404479 has 4 divisors (see below), whose sum is σ = 410584. Its totient is φ = 398376.

The previous prime is 404461. The next prime is 404483. The reversal of 404479 is 974404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404479 is a prime.

It is a super-2 number, since 2×404479² = 327206522882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2952 + ... + 3085.

It is an arithmetic number, because the mean of its divisors is an integer number (102646).

2⁴⁰⁴⁴⁷⁹ is an apocalyptic number.

404479 is a deficient number, since it is larger than the sum of its proper divisors (6105).

404479 is an equidigital number, since it uses as much as digits as its factorization.

404479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6104.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 404479 is about 635.9866350797. The cubic root of 404479 is about 73.9546227767.

The spelling of 404479 in words is "four hundred four thousand, four hundred seventy-nine".