243044263 has 12 divisors (see below), whose sum is σ = 308427912. Its totient is φ = 189384720.

The previous prime is 243044251. The next prime is 243044293. The reversal of 243044263 is 362440342.

It is not a de Polignac number, because 243044263 - 2¹³ = 243036071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243044203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224920 + ... + 225997.

It is an arithmetic number, because the mean of its divisors is an integer number (25702326).

Almost surely, 2^243044263 is an apocalyptic number.

243044263 is a deficient number, since it is larger than the sum of its proper divisors (65383649).

243044263 is a wasteful number, since it uses less digits than its factorization.

243044263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450942 (or 450935 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 243044263 is about 15589.8769398607. The cubic root of 243044263 is about 624.0630338129.

The spelling of 243044263 in words is "two hundred forty-three million, forty-four thousand, two hundred sixty-three".