206340343 has 4 divisors (see below), whose sum is σ = 225098568. Its totient is φ = 187582120.

The previous prime is 206340341. The next prime is 206340349. The reversal of 206340343 is 343043602.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 206340343 - 2¹ = 206340341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206340341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9379096 + ... + 9379117.

It is an arithmetic number, because the mean of its divisors is an integer number (56274642).

Almost surely, 2^206340343 is an apocalyptic number.

206340343 is a deficient number, since it is larger than the sum of its proper divisors (18758225).

206340343 is a wasteful number, since it uses less digits than its factorization.

206340343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18758224.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 206340343 is about 14364.5516115192. The cubic root of 206340343 is about 590.9191294927.

Adding to 206340343 its reverse (343043602), we get a palindrome (549383945).

The spelling of 206340343 in words is "two hundred six million, three hundred forty thousand, three hundred forty-three".