404004305 has 16 divisors (see below), whose sum is σ = 494956224. Its totient is φ = 316493760.

The previous prime is 404004259. The next prime is 404004311. The reversal of 404004305 is 503400404.

It is a happy number.

It is not a de Polignac number, because 404004305 - 2⁶ = 404004241 is a prime.

It is a Duffinian 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, 54470 + ... + 61440.

It is an arithmetic number, because the mean of its divisors is an integer number (30934764).

Almost surely, 2^404004305 is an apocalyptic number.

It is an amenable number.

404004305 is a deficient number, since it is larger than the sum of its proper divisors (90951919).

404004305 is a wasteful number, since it uses less digits than its factorization.

404004305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7216.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 404004305 is about 20099.8583328341. The cubic root of 404004305 is about 739.2568049783.

Adding to 404004305 its reverse (503400404), we get a palindrome (907404709).

The spelling of 404004305 in words is "four hundred four million, four thousand, three hundred five".