243444534249 has 24 divisors (see below), whose sum is σ = 379696908960. Its totient is φ = 138333990144.

The previous prime is 243444534233. The next prime is 243444534317. The reversal of 243444534249 is 942435444342.

It is not a de Polignac number, because 243444534249 - 2⁴ = 243444534233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243444534198 and 243444534207.

It is not an unprimeable number, because it can be changed into a prime (243444530249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4599624 + ... + 4652249.

It is an arithmetic number, because the mean of its divisors is an integer number (15820704540).

Almost surely, 2^243444534249 is an apocalyptic number.

It is an amenable number.

243444534249 is a deficient number, since it is larger than the sum of its proper divisors (136252374711).

243444534249 is a wasteful number, since it uses less digits than its factorization.

243444534249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252069 (or 9252062 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 48.

The spelling of 243444534249 in words is "two hundred forty-three billion, four hundred forty-four million, five hundred thirty-four thousand, two hundred forty-nine".