Other possible details include startup funds (e.g. US$1M over 10 years), lab space (dry/wet lab, exclusive use square footage), and access to shared facilities (big experimental equipment). Lab space and shared facilities aren't free, so the cost is often deducted from your startup funds.
The first few abundant numbers are 12, 18, 20, 24, 30, 36, 40, 42, 48, ... Note that most of these appear to be even; the first odd one does not appear until 945. This is quite remarkable, as it provides a naturally occurring example of a large number. After 945, the odd-abundant numbers are 1,575, 2,205, 2,835, 3,465, ...
Infinitely many even and odd abundant numbers exist. The set of abundant numbers has a natural density. Marc DelÃ©glise showed in 1998 that the natural density of the set of abundant numbers and perfect numbers is between 0.2474 and 0.2480. Every multiple (beyond 1) of a perfect number is abundant.