20441480772 has 24 divisors (see below), whose sum is σ = 47816942656. Its totient is φ = 6796662048.

The previous prime is 20441480753. The next prime is 20441480777. The reversal of 20441480772 is 27708414402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20441480772.

It is not an unprimeable number, because it can be changed into a prime (20441480777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2140648 + ... + 2150175.

Almost surely, 2^20441480772 is an apocalyptic number.

It is an amenable number.

20441480772 is an abundant number, since it is smaller than the sum of its proper divisors (27375461884).

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

20441480772 is a wasteful number, since it uses less digits than its factorization.

20441480772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291227 (or 4291225 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 39.

The spelling of 20441480772 in words is "twenty billion, four hundred forty-one million, four hundred eighty thousand, seven hundred seventy-two".