1,040 lbs
It is: 40,000 pounds
40,000
In words . . . . . "forty thousand". In numbers . . . 40,000 .
10040
47,000
3040
£1,049.00
6,040,000
43,002
40,089
400,044.00
Forty thousand in numerals is 40,000. Pounds cannot be written in numerals and in any case, depends on whether you mean mass or currency.