444144220 has 24 divisors (see below), whose sum is σ = 1004449824. Its totient is φ = 163991616.

The previous prime is 444144203. The next prime is 444144221. The reversal of 444144220 is 22441444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444144221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853864 + ... + 854383.

It is an arithmetic number, because the mean of its divisors is an integer number (41852076).

Almost surely, 2^444144220 is an apocalyptic number.

It is an amenable number.

444144220 is an abundant number, since it is smaller than the sum of its proper divisors (560305604).

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

444144220 is a wasteful number, since it uses less digits than its factorization.

444144220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708269 (or 1708267 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 444144220 is about 21074.7294170056. The cubic root of 444144220 is about 762.9709540637.

Adding to 444144220 its reverse (22441444), we get a palindrome (466585664).

The spelling of 444144220 in words is "four hundred forty-four million, one hundred forty-four thousand, two hundred twenty".