Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_22835602_1 ( directed_by VARCHAR, viewers__in_millions_ VARCHAR )

### Question ###
List all directors from episodes with viewership of 1.945 million.

### Accurate SQL ###

SELECT directed_by FROM table_22835602_1 WHERE viewers__in_millions_ = "1.945"