2162442643 has 4 divisors (see below), whose sum is σ = 2162568600. Its totient is φ = 2162316688.

The previous prime is 2162442641. The next prime is 2162442671. The reversal of 2162442643 is 3462442612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2162442643 - 2¹ = 2162442641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2162442599 and 2162442608.

It is not an unprimeable number, because it can be changed into a prime (2162442641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 32218 + ... + 73231.

It is an arithmetic number, because the mean of its divisors is an integer number (540642150).

Almost surely, 2^2162442643 is an apocalyptic number.

2162442643 is a deficient number, since it is larger than the sum of its proper divisors (125957).

2162442643 is a wasteful number, since it uses less digits than its factorization.

2162442643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125956.

The product of its digits is 55296, while the sum is 34.

The square root of 2162442643 is about 46502.0713839717. The cubic root of 2162442643 is about 1293.1479003478.

The spelling of 2162442643 in words is "two billion, one hundred sixty-two million, four hundred forty-two thousand, six hundred forty-three".