243246216 has 16 divisors (see below), whose sum is σ = 608115600. Its totient is φ = 81082064.

The previous prime is 243246193. The next prime is 243246233. The reversal of 243246216 is 612642342.

243246216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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, 5067606 + ... + 5067653.

It is an arithmetic number, because the mean of its divisors is an integer number (38007225).

Almost surely, 2^243246216 is an apocalyptic number.

It is an amenable number.

243246216 is an abundant number, since it is smaller than the sum of its proper divisors (364869384).

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

243246216 is a wasteful number, since it uses less digits than its factorization.

243246216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10135268 (or 10135264 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 243246216 is about 15596.3526505398. The cubic root of 243246216 is about 624.2358370554.

Adding to 243246216 its reverse (612642342), we get a palindrome (855888558).

The spelling of 243246216 in words is "two hundred forty-three million, two hundred forty-six thousand, two hundred sixteen".