38400 seconds is equivalent to 10 hours and 40 minutes. The formula to convert seconds to hours and minutes is to divide the total number of seconds by 3600 (the number of seconds in an hour) to get the hours, and then find the remaining minutes by dividing the remaining seconds by 60. This conversion is crucial in various fields like physics, engineering, and everyday life to understand and work with different units of time efficiently. Understanding how to convert seconds to hours and minutes is essential for time management, scheduling, and calculations in a wide range of applications.