2189683774 has 8 divisors (see below), whose sum is σ = 3289635720. Its totient is φ = 1093138536.

The previous prime is 2189683763. The next prime is 2189683781. The reversal of 2189683774 is 4773869812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850069 + ... + 852640.

It is an arithmetic number, because the mean of its divisors is an integer number (411204465).

Almost surely, 2^2189683774 is an apocalyptic number.

2189683774 is a deficient number, since it is larger than the sum of its proper divisors (1099951946).

2189683774 is a wasteful number, since it uses less digits than its factorization.

2189683774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703354.

The product of its digits is 4064256, while the sum is 55.

The square root of 2189683774 is about 46794.0570371922. The cubic root of 2189683774 is about 1298.5553526018. Note that the first 3 decimals are identical.

The spelling of 2189683774 in words is "two billion, one hundred eighty-nine million, six hundred eighty-three thousand, seven hundred seventy-four".