243340343 has 8 divisors (see below), whose sum is σ = 244747008. Its totient is φ = 241938424.

The previous prime is 243340337. The next prime is 243340381. The reversal of 243340343 is 343043342.

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

It is a cyclic number.

It is not a de Polignac number, because 243340343 - 2¹⁶ = 243274807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243346343) 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, 152930 + ... + 154512.

It is an arithmetic number, because the mean of its divisors is an integer number (30593376).

Almost surely, 2^243340343 is an apocalyptic number.

243340343 is a deficient number, since it is larger than the sum of its proper divisors (1406665).

243340343 is a wasteful number, since it uses less digits than its factorization.

243340343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373.

The product of its (nonzero) digits is 10368, while the sum is 26.

The square root of 243340343 is about 15599.3699552258. The cubic root of 243340343 is about 624.3163451517.

Adding to 243340343 its reverse (343043342), we get a palindrome (586383685).

The spelling of 243340343 in words is "two hundred forty-three million, three hundred forty thousand, three hundred forty-three".