243324404 has 12 divisors (see below), whose sum is σ = 426125700. Its totient is φ = 121574208.

The previous prime is 243324373. The next prime is 243324421. The reversal of 243324404 is 404423342.

243324404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 54316900 + 189007504 = 7370^2 + 13748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15569 + ... + 27000.

It is an arithmetic number, because the mean of its divisors is an integer number (35510475).

Almost surely, 2^243324404 is an apocalyptic number.

It is an amenable number.

243324404 is a deficient number, since it is larger than the sum of its proper divisors (182801296).

243324404 is a wasteful number, since it uses less digits than its factorization.

243324404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44002 (or 44000 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 243324404 is about 15598.8590608416. The cubic root of 243324404 is about 624.3027137697.

Adding to 243324404 its reverse (404423342), we get a palindrome (647747746).

The spelling of 243324404 in words is "two hundred forty-three million, three hundred twenty-four thousand, four hundred four".