316666242 has 24 divisors (see below), whose sum is σ = 726470316. Its totient is φ = 99346176.

The previous prime is 316666241. The next prime is 316666243. The reversal of 316666242 is 242666613.

316666242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (316666241) and next prime (316666243).

It can be written as a sum of positive squares in 2 ways, for example, as 246458601 + 70207641 = 15699^2 + 8379^2 .

It is a junction number, because it is equal to n+sod(n) for n = 316666197 and 316666206.

It is not an unprimeable number, because it can be changed into a prime (316666241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 517123 + ... + 517734.

Almost surely, 2^316666242 is an apocalyptic number.

316666242 is an abundant number, since it is smaller than the sum of its proper divisors (409804074).

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

316666242 is a wasteful number, since it uses less digits than its factorization.

316666242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034882 (or 1034879 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 316666242 is about 17795.1184879449. The cubic root of 316666242 is about 681.6068129196.

The spelling of 316666242 in words is "three hundred sixteen million, six hundred sixty-six thousand, two hundred forty-two".