Final answer:
The maximum number of pages the report can have on the USB drive is 2 * 10^6 pages.
Step-by-step explanation:
To find the maximum number of pages that can be stored on the USB drive, we need to divide the total storage space of the USB drive by the space required for each page. The USB drive holds 4 * 10^6 kb of space, and each page requires 2 kb of space. So, we need to divide 4 * 10^6 by 2:
4 * 10^6 / 2 = 2 * 10^6 pages
Therefore, the maximum number of pages the report can have is 2 * 10^6 pages.