2186705338 has 8 divisors (see below), whose sum is σ = 3313873332. Its totient is φ = 1082080896.

The previous prime is 2186705333. The next prime is 2186705387. The reversal of 2186705338 is 8335076812.

2186705338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2107085409 + 79619929 = 45903^2 + 8923^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2186705294 and 2186705303.

It is not an unprimeable number, because it can be changed into a prime (2186705333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5635645 + ... + 5636032.

Almost surely, 2^2186705338 is an apocalyptic number.

2186705338 is a deficient number, since it is larger than the sum of its proper divisors (1127167994).

2186705338 is a wasteful number, since it uses less digits than its factorization.

2186705338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11271776.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 2186705338 is about 46762.2212688833. The cubic root of 2186705338 is about 1297.9663148911.

The spelling of 2186705338 in words is "two billion, one hundred eighty-six million, seven hundred five thousand, three hundred thirty-eight".