13206216 has 32 divisors (see below), whose sum is σ = 34754400. Its totient is φ = 4170240.

The previous prime is 13206191. The next prime is 13206227. The reversal of 13206216 is 61260231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13206192 and 13206201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14025 + ... + 14936.

It is an arithmetic number, because the mean of its divisors is an integer number (1086075).

Almost surely, 2^13206216 is an apocalyptic number.

It is an amenable number.

13206216 is an abundant number, since it is smaller than the sum of its proper divisors (21548184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13206216 is a wasteful number, since it uses less digits than its factorization.

13206216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28989 (or 28985 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13206216 is about 3634.0357730765. The cubic root of 13206216 is about 236.3702414148.

Adding to 13206216 its reverse (61260231), we get a palindrome (74466447).

The spelling of 13206216 in words is "thirteen million, two hundred six thousand, two hundred sixteen".