At the time of his death, Hal owns property worth $5,000,000. Other information regarding his affairs is as follows.

Unpaid pledge to the building fund of his church $50,000

College graduation gift he had promised his grandson 20,000

Local property taxes owed (accrued prior to death) 100,000

Casualty loss to uninsured vacation home (fire occurred one month before

death in a Federal disaster area) 500,000

Mortgage owed on personal residence 800,000

All of these items (except the casualty loss) were paid by his estate, and none were deducted on Form 1041 (income tax return of the estate). What is Hal's taxable estate?