1640 x 4000
1640 x 4000 = 6560000
Example of 1640 x 4000 pixels banner dimensions.
1590 x 4050 1600 x 4040 1610 x 4030 1620 x 4020 1630 x 4010
1640 x 3950 1640 x 3960 1640 x 3970 1640 x 3980 1640 x 3990
1640 x 4050 1640 x 4040 1640 x 4030 1640 x 4020 1640 x 4010