22548013444 has 24 divisors (see below), whose sum is σ = 45578338848. Its totient is φ = 9646208640.

The previous prime is 22548013441. The next prime is 22548013447. The reversal of 22548013444 is 44431084522.

It is an interprime number because it is at equal distance from previous prime (22548013441) and next prime (22548013447).

It is a super-2 number, since 2×22548013444² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22548013441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15071454 + ... + 15072949.

It is an arithmetic number, because the mean of its divisors is an integer number (1899097452).

Almost surely, 2^22548013444 is an apocalyptic number.

It is an amenable number.

22548013444 is an abundant number, since it is smaller than the sum of its proper divisors (23030325404).

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

22548013444 is a wasteful number, since it uses less digits than its factorization.

22548013444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30144435 (or 30144433 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

Adding to 22548013444 its reverse (44431084522), we get a palindrome (66979097966).

The spelling of 22548013444 in words is "twenty-two billion, five hundred forty-eight million, thirteen thousand, four hundred forty-four".