A 60-year old employee retired during the year after 40 years of service and received the following remunerations: Gross basic salary P1,200,000; Employee share to SSS, PHIC, HDMF \& union dues - P40,000; Overtime pay P35,000; Retirement pay from an approved plan - P3,000,000; Benefits from SSS - P500,000; 13th month pay - P100,000. How much is combined taxable compensation income? (Answer must have no peso sign, no decimals \& no extra spaces in between. Follow this format: x,xX,xXX)