231868206 has 24 divisors (see below), whose sum is σ = 503000784. Its totient is φ = 77194080.

The previous prime is 231868199. The next prime is 231868207. The reversal of 231868206 is 602868132.

231868206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231868207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7911 + ... + 22941.

It is an arithmetic number, because the mean of its divisors is an integer number (20958366).

Almost surely, 2^231868206 is an apocalyptic number.

231868206 is an abundant number, since it is smaller than the sum of its proper divisors (271132578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231868206 is a wasteful number, since it uses less digits than its factorization.

231868206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15896 (or 15893 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 231868206 is about 15227.2192471245. The cubic root of 231868206 is about 614.3469888090.

The spelling of 231868206 in words is "two hundred thirty-one million, eight hundred sixty-eight thousand, two hundred six".