Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many people live in an area that has a population in Rosenthal smaller than 2,460 while having a population of 4,639 for Glegallan as well as having an Allora population greater than 2,106?

### Inputs:
table_name: table, columns: ['Year', 'Population (Region total)', 'Population (Stanthorpe)', 'Population (Warwick)', 'Population (Allora)', 'Population (Glengallan)', 'Population (Rosenthal)']

### Response:
SELECT COUNT Population (Region total) FROM table WHERE Population (Rosenthal) < 2,460 AND Population (Glengallan) = 4,639 AND Population (Allora) > 2,106