205433218 has 8 divisors (see below), whose sum is σ = 318090240. Its totient is φ = 99403140.

The previous prime is 205433201. The next prime is 205433237. The reversal of 205433218 is 812334502.

205433218 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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, 1656658 + ... + 1656781.

It is an arithmetic number, because the mean of its divisors is an integer number (39761280).

Almost surely, 2^205433218 is an apocalyptic number.

205433218 is a deficient number, since it is larger than the sum of its proper divisors (112657022).

205433218 is a wasteful number, since it uses less digits than its factorization.

205433218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313472.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 205433218 is about 14332.9417078282. The cubic root of 205433218 is about 590.0519134633.

The spelling of 205433218 in words is "two hundred five million, four hundred thirty-three thousand, two hundred eighteen".