Various types of losses incurred by a decedents estate were as follows:

Loss due to typhoon, a day before the decedents death, P1,000,000

Loss due to shipwreck, 6 months after the decedents death, 500,000

Loss due to robbery, 1.5 years after the decedents death, 2,000,000

Gambling losses before death, 2,250,000

How much is the deductible losses from the gross estate of the decedent?