404440403680 has 24 divisors (see below), whose sum is σ = 955490454072. Its totient is φ = 161776161408.

The previous prime is 404440403657. The next prime is 404440403707. The reversal of 404440403680 is 86304044404.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1263876102 + ... + 1263876421.

It is an arithmetic number, because the mean of its divisors is an integer number (39812102253).

Almost surely, 2^404440403680 is an apocalyptic number.

404440403680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404440403680 is an abundant number, since it is smaller than the sum of its proper divisors (551050050392).

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

404440403680 is a wasteful number, since it uses less digits than its factorization.

404440403680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527752538 (or 2527752530 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 37.

The spelling of 404440403680 in words is "four hundred four billion, four hundred forty million, four hundred three thousand, six hundred eighty".