An abundant number that is not the sum of any subset of its distinct proper divisors.
The first few weird numbers are: 70, 836, 4030, 5830, 7192, 7912, 9272, 10430, 10570, 10792, 10990, 11410, …
1,765 of the first one million positive integers are weird.
Learn more about weird numbers on wikipedia.
See other features.