Do you need to convert to an integer data type or is converting to an integer value (if it's not one already) sufficient?
If you need an integer value check that it's not one already first. This could involve changing the default display format
or involve checking that when you round it you get the same number back.
x = 1234567;
x == round(x)
If it's not an integer value, use one of the rounding functions (round, floor, ceil, fix) to round it to the nearest integer value.
If you do need an integer data type use one of the integer data type conversion functions on the page to which Shivaraj Durairaj linked. KSSV and stozaki listed some of those conversion functions. One other conversion function that none of the previous posters mentioned was cast which is different from typecast. cast preserves the value (which likely means the bit pattern used to store the data in memory may change) while typecast preserves the bit pattern used to store the data in memory (which likely means the values will change.)