20444224424 has 32 divisors (see below), whose sum is σ = 42705117000. Its totient is φ = 9110422272.

The previous prime is 20444224417. The next prime is 20444224457. The reversal of 20444224424 is 42442244402.

It can be written as a sum of positive squares in 4 ways, for example, as 17764091524 + 2680132900 = 133282^2 + 51770^2 .

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, 3386279 + ... + 3392310.

Almost surely, 2^20444224424 is an apocalyptic number.

It is an amenable number.

20444224424 is an abundant number, since it is smaller than the sum of its proper divisors (22260892576).

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

20444224424 is a wasteful number, since it uses less digits than its factorization.

20444224424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778637 (or 6778633 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 20444224424 its reverse (42442244402), we get a palindrome (62886468826).

The spelling of 20444224424 in words is "twenty billion, four hundred forty-four million, two hundred twenty-four thousand, four hundred twenty-four".