209368 has 8 divisors (see below), whose sum is σ = 392580. Its totient is φ = 104680.

The previous prime is 209359. The next prime is 209371. The reversal of 209368 is 863902.

209368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

209368 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13078 + ... + 13093.

2²⁰⁹³⁶⁸ is an apocalyptic number.

It is an amenable number.

209368 is a deficient number, since it is larger than the sum of its proper divisors (183212).

209368 is a wasteful number, since it uses less digits than its factorization.

209368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26177 (or 26173 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 209368 is about 457.5674813620. The cubic root of 209368 is about 59.3795316947.

The spelling of 209368 in words is "two hundred nine thousand, three hundred sixty-eight".