20842843200 has 336 divisors, whose sum is σ = 73417176000. Its totient is φ = 5158010880.

The previous prime is 20842843159. The next prime is 20842843243. The reversal of 20842843200 is 234824802.

It is a super-2 number, since 2×20842843200² (a number of 21 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 5955051 + ... + 5958549.

It is an arithmetic number, because the mean of its divisors is an integer number (218503500).

Almost surely, 2^20842843200 is an apocalyptic number.

20842843200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20842843200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36708588000).

20842843200 is an abundant number, since it is smaller than the sum of its proper divisors (52574332800).

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

20842843200 is a wasteful number, since it uses less digits than its factorization.

20842843200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614 (or 3599 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The spelling of 20842843200 in words is "twenty billion, eight hundred forty-two million, eight hundred forty-three thousand, two hundred".