243308 has 12 divisors (see below), whose sum is σ = 458640. Its totient is φ = 112272.

The previous prime is 243301. The next prime is 243311. The reversal of 243308 is 803342.

It is a d-powerful number, because it can be written as 2⁵ + 4⁸ + 3⁴ + 3¹¹ + 0 + 8³ .

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 243308.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243308.

It is not an unprimeable number, because it can be changed into a prime (243301) by changing a digit.

243308 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2288 + ... + 2391.

It is an arithmetic number, because the mean of its divisors is an integer number (38220).

2²⁴³³⁰⁸ is an apocalyptic number.

It is an amenable number.

243308 is a deficient number, since it is larger than the sum of its proper divisors (215332).

243308 is a wasteful number, since it uses less digits than its factorization.

243308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696 (or 4694 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 243308 is about 493.2626075429. The cubic root of 243308 is about 62.4288684088.

The spelling of 243308 in words is "two hundred forty-three thousand, three hundred eight".