206868238 has 8 divisors (see below), whose sum is σ = 326634120. Its totient is φ = 97990200.

The previous prime is 206868229. The next prime is 206868241. The reversal of 206868238 is 832868602.

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 = 206868194 and 206868203.

It is a congruent number.

It is an unprimeable number.

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, 2721913 + ... + 2721988.

It is an arithmetic number, because the mean of its divisors is an integer number (40829265).

Almost surely, 2^206868238 is an apocalyptic number.

206868238 is a deficient number, since it is larger than the sum of its proper divisors (119765882).

206868238 is a wasteful number, since it uses less digits than its factorization.

206868238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5443922.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 206868238 is about 14382.9147949920. The cubic root of 206868238 is about 591.4226303345.

The spelling of 206868238 in words is "two hundred six million, eight hundred sixty-eight thousand, two hundred thirty-eight".