404404424402 has 32 divisors (see below), whose sum is σ = 679632120000. Its totient is φ = 178915384000.

The previous prime is 404404424339. The next prime is 404404424407. The reversal of 404404424402 is 204424404404.

It is not an unprimeable number, because it can be changed into a prime (404404424407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411277 + ... + 1673472.

It is an arithmetic number, because the mean of its divisors is an integer number (21238503750).

Almost surely, 2^404404424402 is an apocalyptic number.

404404424402 is a deficient number, since it is larger than the sum of its proper divisors (275227695598).

404404424402 is a wasteful number, since it uses less digits than its factorization.

404404424402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084922.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 404404424402 its reverse (204424404404), we get a palindrome (608828828806).

The spelling of 404404424402 in words is "four hundred four billion, four hundred four million, four hundred twenty-four thousand, four hundred two".