2183820220 has 24 divisors (see below), whose sum is σ = 4683599424. Its totient is φ = 854942016.

The previous prime is 2183820193. The next prime is 2183820251. The reversal of 2183820220 is 220283812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160667 + ... + 1162546.

It is an arithmetic number, because the mean of its divisors is an integer number (195149976).

Almost surely, 2^2183820220 is an apocalyptic number.

2183820220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2183820220 is an abundant number, since it is smaller than the sum of its proper divisors (2499779204).

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

2183820220 is a wasteful number, since it uses less digits than its factorization.

2183820220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323269 (or 2323267 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 2183820220 is about 46731.3622741730. The cubic root of 2183820220 is about 1297.3952222270.

It can be divided in two parts, 2183 and 820220, that added together give a triangular number (822403 = T₁₂₈₂).

The spelling of 2183820220 in words is "two billion, one hundred eighty-three million, eight hundred twenty thousand, two hundred twenty".