2189094786 has 24 divisors (see below), whose sum is σ = 4750440240. Its totient is φ = 728559576.

The previous prime is 2189094781. The next prime is 2189094829. The reversal of 2189094786 is 6874909812.

2189094786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2189094781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82996 + ... + 106143.

It is an arithmetic number, because the mean of its divisors is an integer number (197935010).

Almost surely, 2^2189094786 is an apocalyptic number.

2189094786 is an abundant number, since it is smaller than the sum of its proper divisors (2561345454).

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

2189094786 is a wasteful number, since it uses less digits than its factorization.

2189094786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189790 (or 189787 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 2189094786 is about 46787.7632079158. The cubic root of 2189094786 is about 1298.4389123323.

The spelling of 2189094786 in words is "two billion, one hundred eighty-nine million, ninety-four thousand, seven hundred eighty-six".