-58.41 a integer?

The term "Integers" means "whole numbers".

Integers can be classified into three classes :
(1) positive integers, i.e. 1, 2, 3, 4 ......
(2) zero, i.e. 0
(3) negative integers, i.e. -1, -2, -3, -4 ......

-58.41 is NOT a whole number. Therefore, it is NOT an integer.

no

No, an integer includes only whole numbers and their reciprocals (negative value)
Any number with a decimal or simplified fraction is not an integer

integer is a whole number