243734 has 4 divisors (see below), whose sum is σ = 365604. Its totient is φ = 121866.

The previous prime is 243709. The next prime is 243769. The reversal of 243734 is 437342.

It is a happy number.

243734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60932 + ... + 60935.

It is an arithmetic number, because the mean of its divisors is an integer number (91401).

2²⁴³⁷³⁴ is an apocalyptic number.

243734 is a deficient number, since it is larger than the sum of its proper divisors (121870).

243734 is a wasteful number, since it uses less digits than its factorization.

243734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121869.

The product of its digits is 2016, while the sum is 23.

The square root of 243734 is about 493.6942373575. The cubic root of 243734 is about 62.4652820515.

The spelling of 243734 in words is "two hundred forty-three thousand, seven hundred thirty-four".