22387140544 has 112 divisors (see below), whose sum is σ = 47050488576. Its totient is φ = 10554163200.

The previous prime is 22387140541. The next prime is 22387140553. The reversal of 22387140544 is 44504178322.

It is a junction number, because it is equal to n+sod(n) for n = 22387140497 and 22387140506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22387140541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13674894 + ... + 13676530.

It is an arithmetic number, because the mean of its divisors is an integer number (420093648).

Almost surely, 2^22387140544 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 22387140544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23525244288).

22387140544 is an abundant number, since it is smaller than the sum of its proper divisors (24663348032).

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

22387140544 is a wasteful number, since it uses less digits than its factorization.

22387140544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 22387140544 in words is "twenty-two billion, three hundred eighty-seven million, one hundred forty thousand, five hundred forty-four".