22344444440 has 32 divisors (see below), whose sum is σ = 50963705280. Its totient is φ = 8815341312.

The previous prime is 22344444431. The next prime is 22344444443. The reversal of 22344444440 is 4444444322.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22344444440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22344444443) 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, 3823184 + ... + 3829023.

It is an arithmetic number, because the mean of its divisors is an integer number (1592615790).

Almost surely, 2^22344444440 is an apocalyptic number.

22344444440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22344444440 is an abundant number, since it is smaller than the sum of its proper divisors (28619260840).

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

22344444440 is a wasteful number, since it uses less digits than its factorization.

22344444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652291 (or 7652287 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 35.

Adding to 22344444440 its reverse (4444444322), we get a palindrome (26788888762).

The spelling of 22344444440 in words is "twenty-two billion, three hundred forty-four million, four hundred forty-four thousand, four hundred forty".