404244442220 has 48 divisors (see below), whose sum is σ = 877256237088. Its totient is φ = 156373593600.

The previous prime is 404244442211. The next prime is 404244442237. The reversal of 404244442220 is 22244442404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2240129 + ... + 2413848.

It is an arithmetic number, because the mean of its divisors is an integer number (18276171606).

Almost surely, 2^404244442220 is an apocalyptic number.

It is an amenable number.

404244442220 is an abundant number, since it is smaller than the sum of its proper divisors (473011794868).

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

404244442220 is a wasteful number, since it uses less digits than its factorization.

404244442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654130 (or 4654128 counting only the distinct ones).

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

Adding to 404244442220 its reverse (22244442404), we get a palindrome (426488884624).

The spelling of 404244442220 in words is "four hundred four billion, two hundred forty-four million, four hundred forty-two thousand, two hundred twenty".