404040205 has 16 divisors (see below), whose sum is σ = 501110784. Its totient is φ = 312416640.

The previous prime is 404040193. The next prime is 404040227. The reversal of 404040205 is 502040404.

It is not a de Polignac number, because 404040205 - 2¹⁵ = 404007437 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 229609 + ... + 231361.

It is an arithmetic number, because the mean of its divisors is an integer number (31319424).

Almost surely, 2^404040205 is an apocalyptic number.

It is an amenable number.

404040205 is a deficient number, since it is larger than the sum of its proper divisors (97070579).

404040205 is a wasteful number, since it uses less digits than its factorization.

404040205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 404040205 is about 20100.7513541161. The cubic root of 404040205 is about 739.2787012245.

Adding to 404040205 its reverse (502040404), we get a palindrome (906080609).

The spelling of 404040205 in words is "four hundred four million, forty thousand, two hundred five".