216343226 has 16 divisors (see below), whose sum is σ = 354628800. Its totient is φ = 98167680.

The previous prime is 216343223. The next prime is 216343243. The reversal of 216343226 is 622343612.

216343226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (216343223) 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, 4970 + ... + 21386.

It is an arithmetic number, because the mean of its divisors is an integer number (22164300).

Almost surely, 2^216343226 is an apocalyptic number.

216343226 is a deficient number, since it is larger than the sum of its proper divisors (138285574).

216343226 is a wasteful number, since it uses less digits than its factorization.

216343226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17029.

The product of its digits is 10368, while the sum is 29.

The square root of 216343226 is about 14708.6106073959. The cubic root of 216343226 is about 600.3176336703.

Adding to 216343226 its reverse (622343612), we get a palindrome (838686838).

The spelling of 216343226 in words is "two hundred sixteen million, three hundred forty-three thousand, two hundred twenty-six".