Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_26748252_1 (written_by VARCHAR, us_viewers__in_millions_ VARCHAR)
### Question:
How many people wrote the episode with 3.40 million U.S viewers?
### Answer:
SELECT COUNT(written_by) FROM table_26748252_1 WHERE us_viewers__in_millions_ = "3.40"