Mozambique (full name, The Republic of Mozambique) covers an area of approximately 812,000 sq km. Its terrain consists of mostly coastal lowlands, uplands in the centre, high plateaux in the northwest, and mountains in the west. Bordering Malawi, South Africa, Swaziland, Tanzania, Zambia and Zimbabwe, Mozambique has 2,470 km of coastline. The country is divided into the following provinces: Cabo Delgado, Gaza, Inhambane, Manica, Maputo, Nampula, Niassa, Sofala, Tete and Zambezia; and one city, Cidade de Maputo. Maputo is the capital, with a time difference of 2 hours ahead of GMT. The currency is the metical, and main exports include seafood and cotton. The population of approximately 22,000,000 people contains the Makhuwa, Tsonga, Lomwe and Sena ethnic groups. Primary languages are Portuguese with some Makua-Lomwe, Tsonga, Shona and Swahili, and the predominant religions are Catholic, Islam and Zionist Christian.