2182843980 has 144 divisors (see below), whose sum is σ = 6977617920. Its totient is φ = 551270016.

The previous prime is 2182843969. The next prime is 2182843997. The reversal of 2182843980 is 893482812.

2182843980 is a `hidden beast` number, since 2 + 182 + 84 + 398 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 423861 + ... + 428979.

It is an arithmetic number, because the mean of its divisors is an integer number (48455680).

Almost surely, 2^2182843980 is an apocalyptic number.

2182843980 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 2182843980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3488808960).

2182843980 is an abundant number, since it is smaller than the sum of its proper divisors (4794773940).

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

2182843980 is a wasteful number, since it uses less digits than its factorization.

2182843980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260 (or 5255 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 2182843980 is about 46720.9158728722. The cubic root of 2182843980 is about 1297.2018671941.

The spelling of 2182843980 in words is "two billion, one hundred eighty-two million, eight hundred forty-three thousand, nine hundred eighty".