2146871180 has 144 divisors (see below), whose sum is σ = 5115307680. Its totient is φ = 754532352.

The previous prime is 2146871171. The next prime is 2146871183. The reversal of 2146871180 is 811786412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (2146871183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12409574 + ... + 12409746.

It is an arithmetic number, because the mean of its divisors is an integer number (35522970).

Almost surely, 2^2146871180 is an apocalyptic number.

2146871180 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 2146871180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2557653840).

2146871180 is an abundant number, since it is smaller than the sum of its proper divisors (2968436500).

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

2146871180 is a wasteful number, since it uses less digits than its factorization.

2146871180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 2146871180 is about 46334.3412600201. The cubic root of 2146871180 is about 1290.0364911657.

The spelling of 2146871180 in words is "two billion, one hundred forty-six million, eight hundred seventy-one thousand, one hundred eighty".