326686216 has 16 divisors (see below), whose sum is σ = 612738540. Its totient is φ = 163289280.

The previous prime is 326686187. The next prime is 326686309. The reversal of 326686216 is 612686623.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 294808900 + 31877316 = 17170^2 + 5646^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32550 + ... + 41386.

Almost surely, 2^326686216 is an apocalyptic number.

It is an amenable number.

326686216 is a deficient number, since it is larger than the sum of its proper divisors (286052324).

326686216 is a wasteful number, since it uses less digits than its factorization.

326686216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13464 (or 13460 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 326686216 is about 18074.4630902276. The cubic root of 326686216 is about 688.7214410377.

The spelling of 326686216 in words is "three hundred twenty-six million, six hundred eighty-six thousand, two hundred sixteen".