A million is a numerical value represented by the digit 1 followed by six zeros, written as 1,000,000. It is a significant milestone in counting and is often used to express large quantities, such as population sizes, financial figures, or distances. In the metric system, a million is equivalent to one thousand thousand. In various contexts, the term "million" can also refer to a large number of items or units. For example, millionaires are individuals whose net worth is at least one million units of currency. Additionally, in scientific notation, a million can be expressed as 10^6, making it easier to work with in calculations.