20386240108 has 12 divisors (see below), whose sum is σ = 38420221840. Its totient is φ = 9409033872.

The previous prime is 20386240103. The next prime is 20386240117. The reversal of 20386240108 is 80104268302.

It is not an unprimeable number, because it can be changed into a prime (20386240103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196021488 + ... + 196021591.

Almost surely, 2^20386240108 is an apocalyptic number.

It is an amenable number.

20386240108 is a deficient number, since it is larger than the sum of its proper divisors (18033981732).

20386240108 is a wasteful number, since it uses less digits than its factorization.

20386240108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392043096 (or 392043094 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 20386240108 in words is "twenty billion, three hundred eighty-six million, two hundred forty thousand, one hundred eight".