404404404 has 24 divisors (see below), whose sum is σ = 952955808. Its totient is φ = 133466400.

The previous prime is 404404387. The next prime is 404404411.

404404404 is nontrivially palindromic in base 10.

404404404 is a modest number, since divided by 404404 gives 404 as remainder.

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 7 ways as a sum of consecutive naturals, for example, 165622 + ... + 168045.

It is an arithmetic number, because the mean of its divisors is an integer number (39706492).

Almost surely, 2^404404404 is an apocalyptic number.

It is an amenable number.

404404404 is an abundant number, since it is smaller than the sum of its proper divisors (548551404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404404404 is a wasteful number, since it uses less digits than its factorization.

404404404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333775 (or 333773 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 404404404 is about 20109.8086515014. The cubic root of 404404404 is about 739.5007613912.

It can be divided in two parts, 40440 and 4404, that added together give a palindrome (44844).

The spelling of 404404404 in words is "four hundred four million, four hundred four thousand, four hundred four".