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

### Instruction:
What is the episode number of the episode whose production code is 226407?

### Inputs:
table_name: table, columns: ['No(s). in series', 'No(s). in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code(s)', 'U.S. viewers (millions)']

### Response:
SELECT MIN No(s). in season FROM table WHERE Production code(s) = 226407