444244220 has 48 divisors (see below), whose sum is σ = 1079059968. Its totient is φ = 150473280.

The previous prime is 444244211. The next prime is 444244249. The reversal of 444244220 is 22442444.

It is a self number, because there is not a number n which added to its sum of digits gives 444244220.

It is a congruent number.

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, 7496 + ... + 30735.

It is an arithmetic number, because the mean of its divisors is an integer number (22480416).

Almost surely, 2^444244220 is an apocalyptic number.

It is an amenable number.

444244220 is an abundant number, since it is smaller than the sum of its proper divisors (634815748).

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

444244220 is a wasteful number, since it uses less digits than its factorization.

444244220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38330 (or 38328 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 444244220 is about 21077.1017931783. The cubic root of 444244220 is about 763.0282112687.

Adding to 444244220 its reverse (22442444), we get a palindrome (466686664).

The spelling of 444244220 in words is "four hundred forty-four million, two hundred forty-four thousand, two hundred twenty".