The number 4 in Chinese culture is usually considered to be unlucky because its pronunciation is the same as the word “death” in Chinese. However, my roommate was from the southern part of China told me that in her hometown if two number 4 come together that means wealth, as 4 plus 4 equals to 8, and the number 8 represents prosper and wealth. So if you have two 4 in your phone number, that is very lucky.