6820842020 has 24 divisors (see below), whose sum is σ = 14329211904. Its totient is φ = 2727299936.

The previous prime is 6820842013. The next prime is 6820842029. The reversal of 6820842020 is 202480286.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6820842029) 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, 9722 + ... + 117201.

It is an arithmetic number, because the mean of its divisors is an integer number (597050496).

Almost surely, 2^6820842020 is an apocalyptic number.

It is an amenable number.

6820842020 is an abundant number, since it is smaller than the sum of its proper divisors (7508369884).

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

6820842020 is a wasteful number, since it uses less digits than its factorization.

6820842020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129619 (or 129617 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 6820842020 is about 82588.3891355195. The cubic root of 6820842020 is about 1896.4700868281.

The spelling of 6820842020 in words is "six billion, eight hundred twenty million, eight hundred forty-two thousand, twenty".