What area that river drains?

The Nile Basin is the area that the Nile River drains. The Nile River is the longest river in the world and flows through Egypt and Sudan. The basin covers an area of over 3.5 million square kilometers (1.4 million square miles) and is home to over 400 million people. The Nile Basin is a major source of water for irrigation, drinking, and transportation. The basin is also home to a number of important cultural and historical sites, including the pyramids of Giza and the temples of Luxor.