243238 has 16 divisors (see below), whose sum is σ = 396720. Its totient is φ = 111456.

The previous prime is 243233. The next prime is 243239. The reversal of 243238 is 832342.

It is a d-powerful number, because it can be written as 2⁵ + 4⁸ + 2⁹ + 3 + 3¹¹ + 8 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320 + ... + 1492.

It is an arithmetic number, because the mean of its divisors is an integer number (24795).

2²⁴³²³⁸ is an apocalyptic number.

243238 is a deficient number, since it is larger than the sum of its proper divisors (153482).

243238 is a wasteful number, since it uses less digits than its factorization.

243238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231.

The product of its digits is 1152, while the sum is 22.

The square root of 243238 is about 493.1916463202. The cubic root of 243238 is about 62.4228808814.

It can be divided in two parts, 2432 and 38, that multiplied together give a square (92416 = 304²).

The spelling of 243238 in words is "two hundred forty-three thousand, two hundred thirty-eight".