22384442640 has 960 divisors, whose sum is σ = 92334090240. Its totient is φ = 4443586560.

The previous prime is 22384442617. The next prime is 22384442681. The reversal of 22384442640 is 4624448322.

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, 269692039 + ... + 269692121.

It is an arithmetic number, because the mean of its divisors is an integer number (96181344).

Almost surely, 2^22384442640 is an apocalyptic number.

22384442640 is a gapful number since it is divisible by the number (20) 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 22384442640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46167045120).

22384442640 is an abundant number, since it is smaller than the sum of its proper divisors (69949647600).

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

22384442640 is a wasteful number, since it uses less digits than its factorization.

22384442640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 39.

The spelling of 22384442640 in words is "twenty-two billion, three hundred eighty-four million, four hundred forty-two thousand, six hundred forty".