2194843844 has 24 divisors (see below), whose sum is σ = 3916055808. Its totient is φ = 1075998560.

The previous prime is 2194843841. The next prime is 2194843877. The reversal of 2194843844 is 4483484912.

It is not an unprimeable number, because it can be changed into a prime (2194843841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465539 + ... + 470229.

It is an arithmetic number, because the mean of its divisors is an integer number (163168992).

Almost surely, 2^2194843844 is an apocalyptic number.

It is an amenable number.

2194843844 is a deficient number, since it is larger than the sum of its proper divisors (1721211964).

2194843844 is a wasteful number, since it uses less digits than its factorization.

2194843844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955 (or 6953 counting only the distinct ones).

The product of its digits is 884736, while the sum is 47.

The square root of 2194843844 is about 46849.1605474420. The cubic root of 2194843844 is about 1299.5745834829.

The spelling of 2194843844 in words is "two billion, one hundred ninety-four million, eight hundred forty-three thousand, eight hundred forty-four".