The Arab world is at its minimum defined as the 19 states where Arabs form at least a plurality of the population.[20][21] At its maximum it consists of the 22 members of the Arab League, an international organization,[6] which on top of the 19 plurality Arab states also includes the Comoros, Djibouti and Somalia. The region stretches from the Atlantic Ocean in the west to the Arabian Sea in the east, and from the Mediterranean Sea in the north to the Indian Ocean in the southeast.[6] The eastern part of the Arab world is known as the Mashriq, and the western part as the Maghreb. According to the World Bank, the Arab world has a total population of 456 million inhabitants and a gross domestic product of $2.85 trillion, as of 2021.[2] The region is nevertheless diverse in many ways, and economically includes some of the wealthiest as well as poorest populations.[21] The region mostly corresponds with the Middle East and North Africa (MENA) definition.