243368 has 16 divisors (see below), whose sum is σ = 472500. Its totient is φ = 117376.

The previous prime is 243367. The next prime is 243391. The reversal of 243368 is 863342.

It can be written as a sum of positive squares in 2 ways, for example, as 228484 + 14884 = 478^2 + 122^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁷ + 4⁸ + 3² + 3¹¹ + 6² + 8³ .

It is not an unprimeable number, because it can be changed into a prime (243367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293 + ... + 756.

2²⁴³³⁶⁸ is an apocalyptic number.

It is an amenable number.

243368 is a deficient number, since it is larger than the sum of its proper divisors (229132).

243368 is a wasteful number, since it uses less digits than its factorization.

243368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1080 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 243368 is about 493.3234233239. The cubic root of 243368 is about 62.4339996612.

Subtracting from 243368 its sum of digits (26), we obtain a palindrome (243342).

It can be divided in two parts, 2 and 43368, that multiplied together give a triangular number (86736 = T₄₁₆).

The spelling of 243368 in words is "two hundred forty-three thousand, three hundred sixty-eight".