CREATE TABLE table_35902 ("Year" FLOAT, "Album" TEXT, "Oricon position" FLOAT, "1st week sales" TEXT, "Copies sold" TEXT)

How many copies were sold when the 1st week sales were 4,590+?
SELECT "Copies sold" FROM table_35902 WHERE "1st week sales" = '4,590+'
SELECT "Copies sold" FROM "table_35902" WHERE "1st week sales" = '4,590+'