243344404 has 6 divisors (see below), whose sum is σ = 425852714. Its totient is φ = 121672200.

The previous prime is 243344377. The next prime is 243344407. The reversal of 243344404 is 404443342.

It can be written as a sum of positive squares in only one way, i.e., 236852100 + 6492304 = 15390^2 + 2548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243344407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30418047 + ... + 30418054.

Almost surely, 2^243344404 is an apocalyptic number.

It is an amenable number.

243344404 is a deficient number, since it is larger than the sum of its proper divisors (182508310).

243344404 is a wasteful number, since it uses less digits than its factorization.

243344404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60836105 (or 60836103 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 243344404 is about 15599.5001201962. The cubic root of 243344404 is about 624.3198181127.

Adding to 243344404 its reverse (404443342), we get a palindrome (647787746).

The spelling of 243344404 in words is "two hundred forty-three million, three hundred forty-four thousand, four hundred four".