404444440444 has 24 divisors (see below), whose sum is σ = 785208009600. Its totient is φ = 180722476080.

The previous prime is 404444440403. The next prime is 404444440511. The reversal of 404444440444 is 444044444404.

It is a junction number, because it is equal to n+sod(n) for n = 404444440397 and 404444440406.

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, 77895024 + ... + 77900215.

It is an arithmetic number, because the mean of its divisors is an integer number (32717000400).

Almost surely, 2^404444440444 is an apocalyptic number.

404444440444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

404444440444 is a deficient number, since it is larger than the sum of its proper divisors (380763569156).

404444440444 is a wasteful number, since it uses less digits than its factorization.

404444440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155795313 (or 155795311 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 404444440444 its reverse (444044444404), we get a palindrome (848488884848).

The spelling of 404444440444 in words is "four hundred four billion, four hundred forty-four million, four hundred forty thousand, four hundred forty-four".