404205 has 8 divisors (see below), whose sum is σ = 646752. Its totient is φ = 215568.

The previous prime is 404197. The next prime is 404213. The reversal of 404205 is 502404.

It is an interprime number because it is at equal distance from previous prime (404197) and next prime (404213).

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

It is not a de Polignac number, because 404205 - 2³ = 404197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 26947 = 404205 / (4 + 0 + 4 + 2 + 0 + 5).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13459 + ... + 13488.

It is an arithmetic number, because the mean of its divisors is an integer number (80844).

2⁴⁰⁴²⁰⁵ is an apocalyptic number.

It is an amenable number.

404205 is a deficient number, since it is larger than the sum of its proper divisors (242547).

404205 is a wasteful number, since it uses less digits than its factorization.

404205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26955.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 404205 is about 635.7711852546. The cubic root of 404205 is about 73.9379196895.

Adding to 404205 its reverse (502404), we get a palindrome (906609).

The spelling of 404205 in words is "four hundred four thousand, two hundred five".