The Mulliken electronegativity can be approximated directly into the Pauling scale using energies in — Periodic Table and Periodicity Chemistry Question

Question

The Mulliken electronegativity can be approximated directly into the Pauling scale using energies in $\text{kJ/mol}$ by the empirical formula $X_P \approx \frac{IE + EA}{540}$. If a halogen atom has $IE = 1256 \text{ kJ/mol}$ and the absolute magnitude of its electron affinity is $364 \text{ kJ/mol}$, what is its approximate Pauling electronegativity rounded to the nearest integer?