The number 238 is an integer that follows 237 and precedes 239. It is an even number, meaning it is divisible by 2. In mathematics, 238 can be expressed as the product of its prime factors, which are 2 and 119. In the context of science, 238 is significant as it refers to Uranium-238, a common isotope of uranium used in nuclear reactors and weapons. Uranium-238 is not fissile but can be converted into Plutonium-239 through neutron capture, making it important in nuclear chemistry and energy production.