205242230 has 8 divisors (see below), whose sum is σ = 369436032. Its totient is φ = 82096888.

The previous prime is 205242217. The next prime is 205242253. The reversal of 205242230 is 32242502.

205242230 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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10262102 + ... + 10262121.

It is an arithmetic number, because the mean of its divisors is an integer number (46179504).

Almost surely, 2^205242230 is an apocalyptic number.

205242230 is a deficient number, since it is larger than the sum of its proper divisors (164193802).

205242230 is a wasteful number, since it uses less digits than its factorization.

205242230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20524230.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 205242230 is about 14326.2776044582. The cubic root of 205242230 is about 589.8690028043.

Adding to 205242230 its reverse (32242502), we get a palindrome (237484732).

The spelling of 205242230 in words is "two hundred five million, two hundred forty-two thousand, two hundred thirty".