The number 4 is a natural number that follows 3 and precedes 5. It is an even number and is often associated with stability and structure, as seen in the four corners of a square or the four cardinal directions: north, south, east, and west. In mathematics, 4 is the first composite number, meaning it has divisors other than 1 and itself, specifically 1, 2, and 4. In various cultures, the number 4 holds different meanings. For example, in Chinese culture, the number is often considered unlucky because it sounds similar to the word for "death." Conversely, in Western culture, it can symbolize balance and order, as seen in the four seasons: spring, summer, autumn, and winter.