243353343 has 8 divisors (see below), whose sum is σ = 325306800. Its totient is φ = 161817728.

The previous prime is 243353321. The next prime is 243353371. The reversal of 243353343 is 343353342.

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 243353343 - 2²⁶ = 176244479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243353343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243353303) 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, 103098 + ... + 105431.

It is an arithmetic number, because the mean of its divisors is an integer number (40663350).

Almost surely, 2^243353343 is an apocalyptic number.

243353343 is a deficient number, since it is larger than the sum of its proper divisors (81953457).

243353343 is a wasteful number, since it uses less digits than its factorization.

243353343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208921.

The product of its digits is 38880, while the sum is 30.

The square root of 243353343 is about 15599.7866331562. The cubic root of 243353343 is about 624.3274625957.

Subtracting 243353343 from its reverse (343353342), we obtain a palindrome (99999999).

The spelling of 243353343 in words is "two hundred forty-three million, three hundred fifty-three thousand, three hundred forty-three".