404400404 has 12 divisors (see below), whose sum is σ = 709345728. Its totient is φ = 201730200.

The previous prime is 404400377. The next prime is 404400419. The reversal of 404400404 is 404004404.

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 3 ways as a sum of consecutive naturals, for example, 115562 + ... + 119009.

It is an arithmetic number, because the mean of its divisors is an integer number (59112144).

Almost surely, 2^404400404 is an apocalyptic number.

It is an amenable number.

404400404 is a deficient number, since it is larger than the sum of its proper divisors (304945324).

404400404 is a wasteful number, since it uses less digits than its factorization.

404400404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235006 (or 235004 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 404400404 is about 20109.7091973007. The cubic root of 404400404 is about 739.4983232272.

Adding to 404400404 its reverse (404004404), we get a palindrome (808404808).

The spelling of 404400404 in words is "four hundred four million, four hundred thousand, four hundred four".