216230326 has 16 divisors (see below), whose sum is σ = 350002800. Its totient is φ = 99596448.

The previous prime is 216230323. The next prime is 216230341. The reversal of 216230326 is 623032612.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 216230326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216230323) 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, 5065 + ... + 21403.

It is an arithmetic number, because the mean of its divisors is an integer number (21875175).

Almost surely, 2^216230326 is an apocalyptic number.

216230326 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

216230326 is a deficient number, since it is larger than the sum of its proper divisors (133772474).

216230326 is a wasteful number, since it uses less digits than its factorization.

216230326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16863.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 216230326 is about 14704.7722185690. The cubic root of 216230326 is about 600.2131890566.

Adding to 216230326 its reverse (623032612), we get a palindrome (839262938).

The spelling of 216230326 in words is "two hundred sixteen million, two hundred thirty thousand, three hundred twenty-six".