243243204 has 12 divisors (see below), whose sum is σ = 567567504. Its totient is φ = 81081064.

The previous prime is 243243199. The next prime is 243243211. The reversal of 243243204 is 402342342.

It is a tau number, because it is divible by the number of its divisors (12).

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, 10135122 + ... + 10135145.

It is an arithmetic number, because the mean of its divisors is an integer number (47297292).

Almost surely, 2^243243204 is an apocalyptic number.

It is an amenable number.

243243204 is an abundant number, since it is smaller than the sum of its proper divisors (324324300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243243204 is a wasteful number, since it uses less digits than its factorization.

243243204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20270274 (or 20270272 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 243243204 is about 15596.2560892029. The cubic root of 243243204 is about 624.2332605082.

Adding to 243243204 its reverse (402342342), we get a palindrome (645585546).

The spelling of 243243204 in words is "two hundred forty-three million, two hundred forty-three thousand, two hundred four".