22944032644 has 24 divisors (see below), whose sum is σ = 43283462040. Its totient is φ = 10579075584.

The previous prime is 22944032633. The next prime is 22944032669. The reversal of 22944032644 is 44623044922.

It can be written as a sum of positive squares in 4 ways, for example, as 263672644 + 22680360000 = 16238^2 + 150600^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22944032597 and 22944032606.

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, 165109 + ... + 270460.

It is an arithmetic number, because the mean of its divisors is an integer number (1803477585).

Almost surely, 2^22944032644 is an apocalyptic number.

It is an amenable number.

22944032644 is a deficient number, since it is larger than the sum of its proper divisors (20339429396).

22944032644 is a wasteful number, since it uses less digits than its factorization.

22944032644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436599 (or 436597 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 22944032644 in words is "twenty-two billion, nine hundred forty-four million, thirty-two thousand, six hundred forty-four".