No.
It is not a perfect cube.
because it needs to be a prime number and it has to be simplified
36
The two perfect numbers less than 40 are 6 (1+2+3) and 28 (1+2+4+7+14).
No.
It is not a perfect cube.
It is a square number but not a perfect square number.
Yes, but not a perfect cube.
because it needs to be a prime number and it has to be simplified
1600 (square of 40)
36
the closest whole number's whose square is close to 40 are 6 and 7 with the squares being 36 and 49 respectively. A perfect square doesn't have any decimal parts to it, thus 40 is not a perfect square since root 40 =6.32455....
40 is a not perfect square.
The two perfect numbers less than 40 are 6 (1+2+3) and 28 (1+2+4+7+14).
36 is the only perfect square amongst those listed.
The square root of 1600 is 40. (40x40=1600)