243434234 has 16 divisors (see below), whose sum is σ = 371157120. Its totient is φ = 119726880.

The previous prime is 243434201. The next prime is 243434239. The reversal of 243434234 is 432434342.

It is a junction number, because it is equal to n+sod(n) for n = 243434197 and 243434206.

It is not an unprimeable number, because it can be changed into a prime (243434239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41657 + ... + 47139.

It is an arithmetic number, because the mean of its divisors is an integer number (23197320).

Almost surely, 2^243434234 is an apocalyptic number.

243434234 is a deficient number, since it is larger than the sum of its proper divisors (127722886).

243434234 is a wasteful number, since it uses less digits than its factorization.

243434234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845.

The product of its digits is 27648, while the sum is 29.

The square root of 243434234 is about 15602.3791134557. The cubic root of 243434234 is about 624.3966307136.

Adding to 243434234 its reverse (432434342), we get a palindrome (675868576).

The spelling of 243434234 in words is "two hundred forty-three million, four hundred thirty-four thousand, two hundred thirty-four".