Sudan is 16 times larger than Malawi.
Area: 118,484 km2 World Factbook
Population: 17,377,468 (July 2014) World Factbook
Malawi, officially the Republic of Malawi, is a landlocked country in southeast Africa that was formerly known as Nyasaland. It is bordered by Zambia to the northwest, Tanzania to the northeast, and Mozambique on the east, south and west. Wikipedia
Area: 1,861,484 km2 World Factbook
Population: 35,482,233 (July 2014) World Factbook
Sudan, officially the Republic of the Sudan, is an Arab republic in the Nile Valley of North Africa, bordered by Egypt to the north, the Red Sea, Eritrea and Ethiopia to the east, South Sudan to the south, the Central African Republic to the southwest, Chad to the west and Libya to the northwest. Wikipedia