mystery number

1.The number has 5 digits.

2.The value of one of the digits is 50,000.

3.One of the digits is worth 4.

4.The number in the tens place is 2 times the number in the ones place.

5.The product of 9 and 1 is in the thousands place.

6.the product of 1 and 2 is in the hundreds place.

What is the number?

Can you figure it out?