20982876220 has 24 divisors (see below), whose sum is σ = 44077648608. Its totient is φ = 8390558400.

The previous prime is 20982876203. The next prime is 20982876223. The reversal of 20982876220 is 2267828902.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20982876223) 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, 94951 + ... + 225790.

It is an arithmetic number, because the mean of its divisors is an integer number (1836568692).

Almost surely, 2^20982876220 is an apocalyptic number.

20982876220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20982876220 is an abundant number, since it is smaller than the sum of its proper divisors (23094772388).

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

20982876220 is a wasteful number, since it uses less digits than its factorization.

20982876220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324021 (or 324019 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 20982876220 in words is "twenty billion, nine hundred eighty-two million, eight hundred seventy-six thousand, two hundred twenty".