22280418944 has 32 divisors (see below), whose sum is σ = 50727741600. Its totient is φ = 9548750592.

The previous prime is 22280418899. The next prime is 22280418947. The reversal of 22280418944 is 44981408222.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 22280418895 and 22280418904.

It is not an unprimeable number, because it can be changed into a prime (22280418947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12432374 + ... + 12434165.

It is an arithmetic number, because the mean of its divisors is an integer number (1585241925).

Almost surely, 2^22280418944 is an apocalyptic number.

It is an amenable number.

22280418944 is an abundant number, since it is smaller than the sum of its proper divisors (28447322656).

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

22280418944 is an equidigital number, since it uses as much as digits as its factorization.

22280418944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24866560 (or 24866548 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 44.

The spelling of 22280418944 in words is "twenty-two billion, two hundred eighty million, four hundred eighteen thousand, nine hundred forty-four".