2020840680 has 128 divisors (see below), whose sum is σ = 6136715520. Its totient is φ = 532346880.

The previous prime is 2020840649. The next prime is 2020840681. The reversal of 2020840680 is 860480202.

It is a happy number.

2020840680 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2020840681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6456204 + ... + 6456516.

It is an arithmetic number, because the mean of its divisors is an integer number (47943090).

Almost surely, 2^2020840680 is an apocalyptic number.

2020840680 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 2020840680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3068357760).

2020840680 is an abundant number, since it is smaller than the sum of its proper divisors (4115874840).

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

2020840680 is a wasteful number, since it uses less digits than its factorization.

2020840680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 2020840680 is about 44953.7615778702. The cubic root of 2020840680 is about 1264.2822051220.

The spelling of 2020840680 in words is "two billion, twenty million, eight hundred forty thousand, six hundred eighty".