Just 1.
1234567890
1234567890
1234567890
1234567890
1234567890
1234567890
1234567890
1234567890 billon
112345678890 1234567809 1234567890 12345678990 123467890 1234567890 1234567890
2469135780
zero
The number 1234567890 can create about 39 of 40 4 digit numbers.