318914938 has 4 divisors (see below), whose sum is σ = 478372410. Its totient is φ = 159457468.

The previous prime is 318914929. The next prime is 318914983. The reversal of 318914938 is 839419813.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 839419813 = 43 ⋅19521391.

It can be written as a sum of positive squares in only one way, i.e., 247968009 + 70946929 = 15747^2 + 8423^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79728733 + ... + 79728736.

Almost surely, 2^318914938 is an apocalyptic number.

318914938 is a deficient number, since it is larger than the sum of its proper divisors (159457472).

318914938 is a wasteful number, since it uses less digits than its factorization.

318914938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159457471.

The product of its digits is 186624, while the sum is 46.

The square root of 318914938 is about 17858.1896618890. The cubic root of 318914938 is about 683.2164074114.

The spelling of 318914938 in words is "three hundred eighteen million, nine hundred fourteen thousand, nine hundred thirty-eight".