22004640244 has 24 divisors (see below), whose sum is σ = 39320632008. Its totient is φ = 10772375040.

The previous prime is 22004640239. The next prime is 22004640283. The reversal of 22004640244 is 44204640022.

It can be written as a sum of positive squares in 4 ways, for example, as 8822844900 + 13181795344 = 93930^2 + 114812^2 .

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, 235027 + ... + 315034.

It is an arithmetic number, because the mean of its divisors is an integer number (1638359667).

Almost surely, 2^22004640244 is an apocalyptic number.

It is an amenable number.

22004640244 is a deficient number, since it is larger than the sum of its proper divisors (17315991764).

22004640244 is a wasteful number, since it uses less digits than its factorization.

22004640244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550275 (or 550273 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The spelling of 22004640244 in words is "twenty-two billion, four million, six hundred forty thousand, two hundred forty-four".