243834 has 8 divisors (see below), whose sum is σ = 487680. Its totient is φ = 81276.

The previous prime is 243829. The next prime is 243839. The reversal of 243834 is 438342.

It is an interprime number because it is at equal distance from previous prime (243829) and next prime (243839).

It is a sphenic number, since it is the product of 3 distinct primes.

243834 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (243839) by changing a digit.

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, 20314 + ... + 20325.

It is an arithmetic number, because the mean of its divisors is an integer number (60960).

2²⁴³⁸³⁴ is an apocalyptic number.

243834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243834 is a wasteful number, since it uses less digits than its factorization.

243834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40644.

The product of its digits is 2304, while the sum is 24.

The square root of 243834 is about 493.7955042323. The cubic root of 243834 is about 62.4738237050.

The spelling of 243834 in words is "two hundred forty-three thousand, eight hundred thirty-four".