44444222220 has 192 divisors, whose sum is σ = 129049159680. Its totient is φ = 11421388800.

The previous prime is 44444222219. The next prime is 44444222239. The reversal of 44444222220 is 2222244444.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108665376 + ... + 108665784.

It is an arithmetic number, because the mean of its divisors is an integer number (672131040).

Almost surely, 2^44444222220 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 44444222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64524579840).

44444222220 is an abundant number, since it is smaller than the sum of its proper divisors (84604937460).

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

44444222220 is a wasteful number, since it uses less digits than its factorization.

44444222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 44444222220 its reverse (2222244444), we get a palindrome (46666466664).

The spelling of 44444222220 in words is "forty-four billion, four hundred forty-four million, two hundred twenty-two thousand, two hundred twenty".