20045444224 has 48 divisors (see below), whose sum is σ = 43242495570. Its totient is φ = 9251733504.

The previous prime is 20045444183. The next prime is 20045444249. The reversal of 20045444224 is 42244454002.

It can be written as a sum of positive squares in 3 ways, for example, as 16271553600 + 3773890624 = 127560^2 + 61432^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 441697 + ... + 484960.

Almost surely, 2^20045444224 is an apocalyptic number.

It is an amenable number.

20045444224 is an abundant number, since it is smaller than the sum of its proper divisors (23197051346).

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

20045444224 is an equidigital number, since it uses as much as digits as its factorization.

20045444224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926697 (or 926672 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 31.

Adding to 20045444224 its reverse (42244454002), we get a palindrome (62289898226).

The spelling of 20045444224 in words is "twenty billion, forty-five million, four hundred forty-four thousand, two hundred twenty-four".