Yes me to $800.000 is it a scam no one knows. Can anyone tell me or wat!!!

I got a text too, saying that my number just won $800.000.00 USD, in the Samsung Galaxy Proo, and said to claim to email Ref num:sgp4758 to gpsamsung@kimo.com.  Is this real or scam? then he reffer by two different names in his email. Then I received a phone call at 3am in the morning from malaysia, this guy is hard to understand and he sounded like his from India.  This is a joke or what?

Same thing happened to me is it a scam?

Received a text saying I won "EIGHT HUNDRED THOUSAND USD" and to just email the reference number to claim.