44220638000 has 960 divisors, whose sum is σ = 152424529920. Its totient is φ = 12192768000.

The previous prime is 44220637961. The next prime is 44220638029. The reversal of 44220638000 is 83602244.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 348193937 + ... + 348194063.

It is an arithmetic number, because the mean of its divisors is an integer number (158775552).

Almost surely, 2^44220638000 is an apocalyptic number.

44220638000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44220638000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76212264960).

44220638000 is an abundant number, since it is smaller than the sum of its proper divisors (108203891920).

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

44220638000 is a wasteful number, since it uses less digits than its factorization.

44220638000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The spelling of 44220638000 in words is "forty-four billion, two hundred twenty million, six hundred thirty-eight thousand".