243934 has 4 divisors (see below), whose sum is σ = 365904. Its totient is φ = 121966.

The previous prime is 243931. The next prime is 243953. The reversal of 243934 is 439342.

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

It is a junction number, because it is equal to n+sod(n) for n = 243899 and 243908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60982 + ... + 60985.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2²⁴³⁹³⁴ is an apocalyptic number.

243934 is a deficient number, since it is larger than the sum of its proper divisors (121970).

243934 is a wasteful number, since it uses less digits than its factorization.

243934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121969.

The product of its digits is 2592, while the sum is 25.

The square root of 243934 is about 493.8967503436. The cubic root of 243934 is about 62.4823630235.

The spelling of 243934 in words is "two hundred forty-three thousand, nine hundred thirty-four".