243234 has 12 divisors (see below), whose sum is σ = 527046. Its totient is φ = 81072.

The previous prime is 243233. The next prime is 243239. The reversal of 243234 is 432342.

243234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 205209 + 38025 = 453^2 + 195^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 13513 = 243234 / (2 + 4 + 3 + 2 + 3 + 4).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 4 + 2⁹ + 3 + 3¹¹ + 4⁸ .

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 5 ways as a sum of consecutive naturals, for example, 6739 + ... + 6774.

2²⁴³²³⁴ is an apocalyptic number.

243234 is an abundant number, since it is smaller than the sum of its proper divisors (283812).

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

243234 is a wasteful number, since it uses less digits than its factorization.

243234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13521 (or 13518 counting only the distinct ones).

The product of its digits is 576, while the sum is 18.

The square root of 243234 is about 493.1875910848. The cubic root of 243234 is about 62.4225387023.

Adding to 243234 its reverse (432342), we get a palindrome (675576).

It can be divided in two parts, 2 and 43234, that multiplied together give a palindrome (86468).

The spelling of 243234 in words is "two hundred forty-three thousand, two hundred thirty-four".