243236964 has 24 divisors (see below), whose sum is σ = 582893248. Its totient is φ = 78887520.

The previous prime is 243236963. The next prime is 243236989. The reversal of 243236964 is 469632342.

243236964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243236963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273472 + ... + 274359.

Almost surely, 2^243236964 is an apocalyptic number.

It is an amenable number.

243236964 is an abundant number, since it is smaller than the sum of its proper divisors (339656284).

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

243236964 is a wasteful number, since it uses less digits than its factorization.

243236964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547875 (or 547873 counting only the distinct ones).

The product of its digits is 186624, while the sum is 39.

The square root of 243236964 is about 15596.0560399096. The cubic root of 243236964 is about 624.2279225737.

The spelling of 243236964 in words is "two hundred forty-three million, two hundred thirty-six thousand, nine hundred sixty-four".