404000205 has 16 divisors (see below), whose sum is σ = 738743424. Its totient is φ = 184685760.

The previous prime is 404000171. The next prime is 404000213. The reversal of 404000205 is 502000404.

It is not a de Polignac number, because 404000205 - 2⁸ = 403999949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1923706 + ... + 1923915.

It is an arithmetic number, because the mean of its divisors is an integer number (46171464).

Almost surely, 2^404000205 is an apocalyptic number.

It is an amenable number.

404000205 is a deficient number, since it is larger than the sum of its proper divisors (334743219).

404000205 is a wasteful number, since it uses less digits than its factorization.

404000205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847636.

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

The square root of 404000205 is about 20099.7563418067. The cubic root of 404000205 is about 739.2543042102.

Adding to 404000205 its reverse (502000404), we get a palindrome (906000609).

The spelling of 404000205 in words is "four hundred four million, two hundred five", and thus it is an aban number.