Does anyone know this, "Run-time error '6': Overflow" error?

[USAMax]

I have come up across several errors before but nothing I write will detect this one. I have Excel 2010 and the formula bar reads 374012553. When I try IsError or WorksheetFunction.IsError(xlCell.Value) I always get the same error, "Run-time error '6': Overflow".

In the case I am working with the cell needs to be cleared but nothing I write can work with this cell.

How can I detect it so I can delete it and shift everything up?

 

[USAMax]

Thank you everyone. I wrote a routine to clean-up the data before it became a problem.