404007404 has 24 divisors (see below), whose sum is σ = 719377680. Its totient is φ = 198491904.

The previous prime is 404007389. The next prime is 404007413. The reversal of 404007404 is 404700404.

It is a self number, because there is not a number n which added to its sum of digits gives 404007404.

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 7 ways as a sum of consecutive naturals, for example, 80192 + ... + 85080.

It is an arithmetic number, because the mean of its divisors is an integer number (29974070).

Almost surely, 2^404007404 is an apocalyptic number.

It is an amenable number.

404007404 is a deficient number, since it is larger than the sum of its proper divisors (315370276).

404007404 is a wasteful number, since it uses less digits than its factorization.

404007404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249 (or 5247 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 404007404 is about 20099.9354227818. The cubic root of 404007404 is about 739.2586951817.

Adding to 404007404 its reverse (404700404), we get a palindrome (808707808).

The spelling of 404007404 in words is "four hundred four million, seven thousand, four hundred four".