206518234 has 16 divisors (see below), whose sum is σ = 334010880. Its totient is φ = 95200560.

The previous prime is 206518217. The next prime is 206518243. The reversal of 206518234 is 432815602.

It is a junction number, because it is equal to n+sod(n) for n = 206518196 and 206518205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19327 + ... + 28045.

It is an arithmetic number, because the mean of its divisors is an integer number (20875680).

Almost surely, 2^206518234 is an apocalyptic number.

206518234 is a deficient number, since it is larger than the sum of its proper divisors (127492646).

206518234 is a wasteful number, since it uses less digits than its factorization.

206518234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9645.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 206518234 is about 14370.7422911971. The cubic root of 206518234 is about 591.0888959397.

The spelling of 206518234 in words is "two hundred six million, five hundred eighteen thousand, two hundred thirty-four".