444224220 has 96 divisors (see below), whose sum is σ = 1393652736. Its totient is φ = 104774400.

The previous prime is 444224167. The next prime is 444224227. The reversal of 444224220 is 22422444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444224227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15325 + ... + 33515.

It is an arithmetic number, because the mean of its divisors is an integer number (14517216).

Almost surely, 2^444224220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444224220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696826368).

444224220 is an abundant number, since it is smaller than the sum of its proper divisors (949428516).

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

444224220 is a wasteful number, since it uses less digits than its factorization.

444224220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18251 (or 18249 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 444224220 is about 21076.6273393064. The cubic root of 444224220 is about 763.0167605151.

Adding to 444224220 its reverse (22422444), we get a palindrome (466646664).

It can be divided in two parts, 444224 and 220, that added together give a palindrome (444444).

The spelling of 444224220 in words is "four hundred forty-four million, two hundred twenty-four thousand, two hundred twenty".