206340826 has 8 divisors (see below), whose sum is σ = 310796244. Its totient is φ = 102742080.

The previous prime is 206340821. The next prime is 206340847. The reversal of 206340826 is 628043602.

It can be written as a sum of positive squares in 2 ways, for example, as 197430601 + 8910225 = 14051^2 + 2985^2 .

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

It is not an unprimeable number, because it can be changed into a prime (206340821) 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, 213565 + ... + 214528.

Almost surely, 2^206340826 is an apocalyptic number.

206340826 is a deficient number, since it is larger than the sum of its proper divisors (104455418).

206340826 is a wasteful number, since it uses less digits than its factorization.

206340826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428336.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 206340826 is about 14364.5684237293. The cubic root of 206340826 is about 590.9195905655.

The spelling of 206340826 in words is "two hundred six million, three hundred forty thousand, eight hundred twenty-six".