40421 is a four-digit number. In Roman numerals, it is written as MMIICXXI. The number 40421 is a composite number. Its prime factorization is 13 x 3110.846. The number 40421 does not appear to have any widely recognized or significant mathematical properties, historical associations, or scientific applications commonly documented in general knowledge resources. It is not a prime number, nor does it possess common geometric or algebraic significance. It is simply an integer within the standard number system. In contexts such as programming or data management, 40421 might function as an identifier, a code, or a specific data point within a larger dataset. Without further context, its meaning or relevance remains specific to the system in which it is used. It is not a date, a known constant, or a recognized constant in any prominent field.