243430234 has 16 divisors (see below), whose sum is σ = 378230400. Its totient is φ = 117364464.

The previous prime is 243430217. The next prime is 243430237. The reversal of 243430234 is 432034342.

243430234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 243430199 and 243430208.

It is not an unprimeable number, because it can be changed into a prime (243430237) 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, 51019 + ... + 55585.

It is an arithmetic number, because the mean of its divisors is an integer number (23639400).

Almost surely, 2^243430234 is an apocalyptic number.

243430234 is a deficient number, since it is larger than the sum of its proper divisors (134800166).

243430234 is a wasteful number, since it uses less digits than its factorization.

243430234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 243430234 is about 15602.2509273502. The cubic root of 243430234 is about 624.3932107616.

Adding to 243430234 its reverse (432034342), we get a palindrome (675464576).

The spelling of 243430234 in words is "two hundred forty-three million, four hundred thirty thousand, two hundred thirty-four".