What's the total number of density for the place with a population over 393,390 one?
English Name Simplified Traditional Pinyin Hakka Area Population Density
Longyan
1204998
text text text text text real real real
2-1204998-2
Administration
Administration
Xinluo District 新罗区 新羅區 Xīnluó Qū Sîn-lò-khî 2,685 662,429 247
Zhangping City 漳平市 漳平市 Zhāngpíng Shì Chông-phìn-sṳ 2,975 240,194 81
Changting County 长汀县 長汀縣 Chángtīng Xiàn Tshòng-tin-yen 3,099 393,390 127
Yongding County 永定县 永定縣 Yǒngdìng Xiàn Yún-thin-yen 2,216 362,658 164
Shanghang County 上杭县 上杭縣 Shàngháng Xiàn Sông-hông-yen 2,879 374,047 130
Wuping County 武平县 武平縣 Wǔpíng Xiàn Vú-phìn-yen 2,630 278,182 106
Liancheng County 连城县 連城縣 Liánchéng Xiàn Lièn-sàng-yen 2,596 248,645 96
SELECT COUNT Density FROM table WHERE Population > 393,390
393,390