217342326 has 16 divisors (see below), whose sum is σ = 435006000. Its totient is φ = 72393888.

The previous prime is 217342319. The next prime is 217342379. The reversal of 217342326 is 623243712.

217342326 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 217342293 and 217342302.

It is a congruent number.

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, 4101 + ... + 21248.

It is an arithmetic number, because the mean of its divisors is an integer number (27187875).

Almost surely, 2^217342326 is an apocalyptic number.

217342326 is an abundant number, since it is smaller than the sum of its proper divisors (217663674).

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

217342326 is a wasteful number, since it uses less digits than its factorization.

217342326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26783.

The product of its digits is 12096, while the sum is 30.

The square root of 217342326 is about 14742.5345853418. The cubic root of 217342326 is about 601.2403286524.

The spelling of 217342326 in words is "two hundred seventeen million, three hundred forty-two thousand, three hundred twenty-six".