20442480648 has 32 divisors (see below), whose sum is σ = 51120895200. Its totient is φ = 6812201088.

The previous prime is 20442480599. The next prime is 20442480689. The reversal of 20442480648 is 84608424402.

It is a happy number.

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, 35986 + ... + 205377.

It is an arithmetic number, because the mean of its divisors is an integer number (1597527975).

Almost surely, 2^20442480648 is an apocalyptic number.

It is an amenable number.

20442480648 is an abundant number, since it is smaller than the sum of its proper divisors (30678414552).

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

20442480648 is a wasteful number, since it uses less digits than its factorization.

20442480648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244901 (or 244897 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 42.

The spelling of 20442480648 in words is "twenty billion, four hundred forty-two million, four hundred eighty thousand, six hundred forty-eight".