20422806084 has 72 divisors (see below), whose sum is σ = 53337630528. Its totient is φ = 6583878720.

The previous prime is 20422806077. The next prime is 20422806167. The reversal of 20422806084 is 48060822402.

It is a happy number.

20422806084 is a `hidden beast` number, since 2 + 0 + 42 + 2 + 8 + 0 + 608 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176539 + ... + 268349.

It is an arithmetic number, because the mean of its divisors is an integer number (740800424).

Almost surely, 2^20422806084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20422806084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26668815264).

20422806084 is an abundant number, since it is smaller than the sum of its proper divisors (32914824444).

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

20422806084 is a wasteful number, since it uses less digits than its factorization.

20422806084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92025 (or 92020 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 20422806084 in words is "twenty billion, four hundred twenty-two million, eight hundred six thousand, eighty-four".