243356834 has 12 divisors (see below), whose sum is σ = 424633014. Its totient is φ = 104295744.

The previous prime is 243356791. The next prime is 243356837. The reversal of 243356834 is 438653342.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 163200625 + 80156209 = 12775^2 + 8953^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243356837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1241519 + ... + 1241714.

Almost surely, 2^243356834 is an apocalyptic number.

243356834 is a deficient number, since it is larger than the sum of its proper divisors (181276180).

243356834 is a wasteful number, since it uses less digits than its factorization.

243356834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483249 (or 2483242 counting only the distinct ones).

The product of its digits is 207360, while the sum is 38.

The square root of 243356834 is about 15599.8985253110. The cubic root of 243356834 is about 624.3304479896.

The spelling of 243356834 in words is "two hundred forty-three million, three hundred fifty-six thousand, eight hundred thirty-four".