2142881982 has 12 divisors (see below), whose sum is σ = 4642911000. Its totient is φ = 714293988.

The previous prime is 2142881861. The next prime is 2142882013. The reversal of 2142881982 is 2891882412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59524482 + ... + 59524517.

It is an arithmetic number, because the mean of its divisors is an integer number (386909250).

Almost surely, 2^2142881982 is an apocalyptic number.

2142881982 is an abundant number, since it is smaller than the sum of its proper divisors (2500029018).

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

2142881982 is a wasteful number, since it uses less digits than its factorization.

2142881982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119049007 (or 119049004 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 2142881982 is about 46291.2732812568. The cubic root of 2142881982 is about 1289.2369707906.

The spelling of 2142881982 in words is "two billion, one hundred forty-two million, eight hundred eighty-one thousand, nine hundred eighty-two".