22239442944 has 240 divisors, whose sum is σ = 67308040800. Its totient is φ = 7314997248.

The previous prime is 22239442937. The next prime is 22239442963. The reversal of 22239442944 is 44924493222.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22239442944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13104304 + ... + 13106000.

It is an arithmetic number, because the mean of its divisors is an integer number (280450170).

Almost surely, 2^22239442944 is an apocalyptic number.

22239442944 is a gapful number since it is divisible by the number (24) 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 22239442944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33654020400).

22239442944 is an abundant number, since it is smaller than the sum of its proper divisors (45068597856).

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

22239442944 is an equidigital number, since it uses as much as digits as its factorization.

22239442944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810 (or 1781 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The spelling of 22239442944 in words is "twenty-two billion, two hundred thirty-nine million, four hundred forty-two thousand, nine hundred forty-four".