316985238 has 28 divisors (see below), whose sum is σ = 712893948. Its totient is φ = 105661260.

The previous prime is 316985237. The next prime is 316985299. The reversal of 316985238 is 832589613.

It is a happy number.

316985238 is a `hidden beast` number, since 31 + 6 + 98 + 523 + 8 = 666.

It is a super-2 number, since 2×316985238² = 200959282219833288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 316985193 and 316985202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316985237) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 107248 + ... + 110163.

Almost surely, 2^316985238 is an apocalyptic number.

316985238 is an abundant number, since it is smaller than the sum of its proper divisors (395908710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

316985238 is an equidigital number, since it uses as much as digits as its factorization.

316985238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217431 (or 217416 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 316985238 is about 17804.0792516771. The cubic root of 316985238 is about 681.8356099400.

The spelling of 316985238 in words is "three hundred sixteen million, nine hundred eighty-five thousand, two hundred thirty-eight".