22144230240 has 192 divisors, whose sum is σ = 76396400640. Its totient is φ = 5347082240.

The previous prime is 22144230239. The next prime is 22144230271. The reversal of 22144230240 is 4203244122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22144230240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1348801 + ... + 1365119.

It is an arithmetic number, because the mean of its divisors is an integer number (397897920).

Almost surely, 2^22144230240 is an apocalyptic number.

22144230240 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 22144230240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38198200320).

22144230240 is an abundant number, since it is smaller than the sum of its proper divisors (54252170400).

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

22144230240 is a wasteful number, since it uses less digits than its factorization.

22144230240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16605 (or 16597 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22144230240 its reverse (4203244122), we get a palindrome (26347474362).

The spelling of 22144230240 in words is "twenty-two billion, one hundred forty-four million, two hundred thirty thousand, two hundred forty".