404400444404 has 24 divisors (see below), whose sum is σ = 812670751200. Its totient is φ = 174143731680.

The previous prime is 404400444389. The next prime is 404400444449. The reversal of 404400444404 is 404444004404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241865459 + ... + 241867130.

It is an arithmetic number, because the mean of its divisors is an integer number (33861281300).

Almost surely, 2^404400444404 is an apocalyptic number.

404400444404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

404400444404 is an abundant number, since it is smaller than the sum of its proper divisors (408270306796).

404400444404 is a wasteful number, since it uses less digits than its factorization.

404400444404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483732623 (or 483732621 counting only the distinct ones).

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

Adding to 404400444404 its reverse (404444004404), we get a palindrome (808844448808).

Subtracting 404400444404 from its reverse (404444004404), we obtain a square (43560000 = 6600²).

The spelling of 404400444404 in words is "four hundred four billion, four hundred million, four hundred forty-four thousand, four hundred four".