Looking for postive integers such that... (Reverse)

9 + 9 = 18 and 9 * 9 = 81 ........... 81 is the reverse of 18

3 + 24 = 27 and 3 * 24 = 72 .... 72 is the reverse of 27

with a 3-digit number,

2 + 497 = 499 and 2 * 497 = 994 ... we see 994 is the reverse of 499.

Could you find another 3-digit number whose product is the reverse of the sum?

How about a 4-digit number? a 5-digit number, a 6-digit number, etc.?