CREATE TABLE table_74246 ("\\u2116" FLOAT, "#" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" TEXT, "U.S. viewers  ( millions ) " TEXT)

What is the season 4 # for the production code of 4abb07?
SELECT "#" FROM table_74246 WHERE "Production code" = '4ABB07'
SELECT "#" FROM "table_74246" WHERE "Production code" = '4ABB07'