22443213044 has 30 divisors (see below), whose sum is σ = 45818853234. Its totient is φ = 9618515760.

The previous prime is 22443213029. The next prime is 22443213061. The reversal of 22443213044 is 44031234422.

It can be written as a sum of positive squares in only one way, i.e., 22335302500 + 107910544 = 149450^2 + 10388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22443212998 and 22443213016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1158827 + ... + 1178034.

Almost surely, 2^22443213044 is an apocalyptic number.

It is an amenable number.

22443213044 is an abundant number, since it is smaller than the sum of its proper divisors (23375640190).

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

22443213044 is an equidigital number, since it uses as much as digits as its factorization.

22443213044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336893 (or 2336870 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 22443213044 its reverse (44031234422), we get a palindrome (66474447466).

The spelling of 22443213044 in words is "twenty-two billion, four hundred forty-three million, two hundred thirteen thousand, forty-four".