Thirty-eight is a natural number that follows thirty-seven and precedes thirty-nine. It is an even number, meaning it can be divided by two without leaving a remainder. In Roman numerals, thirty-eight is represented as XXXVIII. In mathematics, thirty-eight can be expressed as the sum of two prime numbers: 19 + 19. It is also the product of the prime numbers 2 and 19, making it a composite number. In terms of its position in the number line, thirty-eight is the 38th number in the sequence of natural numbers.