2820684940 has 12 divisors (see below), whose sum is σ = 5923438416. Its totient is φ = 1128273968.

The previous prime is 2820684877. The next prime is 2820684953. The reversal of 2820684940 is 494860282.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70517104 + ... + 70517143.

It is an arithmetic number, because the mean of its divisors is an integer number (493619868).

Almost surely, 2^2820684940 is an apocalyptic number.

2820684940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2820684940 is an abundant number, since it is smaller than the sum of its proper divisors (3102753476).

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

2820684940 is a wasteful number, since it uses less digits than its factorization.

2820684940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141034256 (or 141034254 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 2820684940 is about 53110.1208810524. The cubic root of 2820684940 is about 1412.9220190943.

The spelling of 2820684940 in words is "two billion, eight hundred twenty million, six hundred eighty-four thousand, nine hundred forty".