21842

21842 is a natural number that comes after 21841 and before 21843.

In the United States, 21842 is a ZIP code assigned by the United States Postal Service to Ocean City, Maryland, a seaside resort town in Worcester County on the Atlantic coast. The ZIP code covers the central part of Ocean City and surrounding areas, and it is used for mail delivery and regional planning within the Eastern Time Zone.

In astronomy, 21842 is the designation of a minor planet (asteroid) in the main asteroid belt. As with other numbered minor planets, its orbit and discovery details are recorded by the Minor Planet Center, which assigns sequential numbers as objects are confirmed.

Mathematically, 21842 is an even integer that can be expressed as 2 multiplied by 10921. It is part of the sequence of positive integers and has the standard arithmetic properties associated with even numbers.

Beyond these uses, 21842 does not have any widely noted significance in major historical or cultural contexts.