243342345 has 16 divisors (see below), whose sum is σ = 396695232. Its totient is φ = 127333440.

The previous prime is 243342331. The next prime is 243342349. The reversal of 243342345 is 543243342.

It is not a de Polignac number, because 243342345 - 2⁷ = 243342217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243342349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152251 + ... + 153840.

It is an arithmetic number, because the mean of its divisors is an integer number (24793452).

Almost surely, 2^243342345 is an apocalyptic number.

It is an amenable number.

243342345 is a deficient number, since it is larger than the sum of its proper divisors (153352887).

243342345 is a wasteful number, since it uses less digits than its factorization.

243342345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306152.

The product of its digits is 34560, while the sum is 30.

The square root of 243342345 is about 15599.4341243521. The cubic root of 243342345 is about 624.3180572639.

Adding to 243342345 its reverse (543243342), we get a palindrome (786585687).

The spelling of 243342345 in words is "two hundred forty-three million, three hundred forty-two thousand, three hundred forty-five".