2182144872 has 32 divisors (see below), whose sum is σ = 5692553280. Its totient is φ = 695756160.

The previous prime is 2182144859. The next prime is 2182144897. The reversal of 2182144872 is 2784412812.

It is a self number, because there is not a number n which added to its sum of digits gives 2182144872.

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 7 ways as a sum of consecutive naturals, for example, 1976029 + ... + 1977132.

It is an arithmetic number, because the mean of its divisors is an integer number (177892290).

Almost surely, 2^2182144872 is an apocalyptic number.

It is an amenable number.

2182144872 is an abundant number, since it is smaller than the sum of its proper divisors (3510408408).

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

2182144872 is a wasteful number, since it uses less digits than its factorization.

2182144872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953193 (or 3953189 counting only the distinct ones).

The product of its digits is 57344, while the sum is 39.

The square root of 2182144872 is about 46713.4335282689. The cubic root of 2182144872 is about 1297.0633657642.

The spelling of 2182144872 in words is "two billion, one hundred eighty-two million, one hundred forty-four thousand, eight hundred seventy-two".