22444244440 has 32 divisors (see below), whose sum is σ = 51138792000. Its totient is φ = 8864054784.

The previous prime is 22444244359. The next prime is 22444244453. The reversal of 22444244440 is 4444244422.

It is a junction number, because it is equal to n+sod(n) for n = 22444244396 and 22444244405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3548145 + ... + 3554464.

It is an arithmetic number, because the mean of its divisors is an integer number (1598087250).

Almost surely, 2^22444244440 is an apocalyptic number.

22444244440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444244440 is an abundant number, since it is smaller than the sum of its proper divisors (28694547560).

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

22444244440 is a wasteful number, since it uses less digits than its factorization.

22444244440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7102699 (or 7102695 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 22444244440 its reverse (4444244422), we get a palindrome (26888488862).

The spelling of 22444244440 in words is "twenty-two billion, four hundred forty-four million, two hundred forty-four thousand, four hundred forty".