216230306 has 16 divisors (see below), whose sum is σ = 332903520. Its totient is φ = 105299040.

The previous prime is 216230297. The next prime is 216230309. The reversal of 216230306 is 603032612.

216230306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216230309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2861 + ... + 20991.

It is an arithmetic number, because the mean of its divisors is an integer number (20806470).

Almost surely, 2^216230306 is an apocalyptic number.

216230306 is a deficient number, since it is larger than the sum of its proper divisors (116673214).

216230306 is a wasteful number, since it uses less digits than its factorization.

216230306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18289.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 216230306 is about 14704.7715385177. The cubic root of 216230306 is about 600.2131705512.

Adding to 216230306 its reverse (603032612), we get a palindrome (819262918).

The spelling of 216230306 in words is "two hundred sixteen million, two hundred thirty thousand, three hundred six".