A rectangular parallelepiped glass container measures 40 cm in length and 20 cm in width from the inside. After pouring 4000 ml of water into the container, the apples are completely submerged in the water. At this time, the water depth in the container is 5.8 cm. What is the volume of this apple?
一个长方体玻璃容器从里面量长为40厘米，宽为20厘米，向容器内倒入4000毫升的水后，再把苹果完全没入水中，这时容器内的水深是5.8厘米．这个苹果的体积是多少？
<gadget id="calculator">40 * 20 * 5.8</gadget>
<output>4_640</output>

<gadget id="calculator">4_640 - 4_000</gadget>
<output>640</output>

<result>640</result>