20442244992 has 64 divisors (see below), whose sum is σ = 58476628560. Its totient is φ = 6289920000.

The previous prime is 20442244987. The next prime is 20442245009. The reversal of 20442244992 is 29944224402.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent 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, 2042509 + ... + 2052492.

Almost surely, 2^20442244992 is an apocalyptic number.

It is an amenable number.

20442244992 is an abundant number, since it is smaller than the sum of its proper divisors (38034383568).

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

20442244992 is a wasteful number, since it uses less digits than its factorization.

20442244992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095031 (or 4095019 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 20442244992 in words is "twenty billion, four hundred forty-two million, two hundred forty-four thousand, nine hundred ninety-two".