It will be radical(62). It cannot be simplified.
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7.874007874
62.0
It is irrational
As 3844 ends in 4, its square root (if a whole number) will end in 2 or 8. √3844 = 62 so the unit digit is 2.
It's easy to guess. The nearest square number below 43 is 36 = 62, and the nearest above is 49 = 72. The square root of 43 must be between 6 and 7 then.