316242 has 12 divisors (see below), whose sum is σ = 685230. Its totient is φ = 105408.

The previous prime is 316241. The next prime is 316243. The reversal of 316242 is 242613.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (316241) and next prime (316243).

It can be written as a sum of positive squares in only one way, i.e., 314721 + 1521 = 561^2 + 39^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 17569 = 316242 / (3 + 1 + 6 + 2 + 4 + 2).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316242.

It is not an unprimeable number, because it can be changed into a prime (316241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8767 + ... + 8802.

2³¹⁶²⁴² is an apocalyptic number.

316242 is an abundant number, since it is smaller than the sum of its proper divisors (368988).

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

316242 is a wasteful number, since it uses less digits than its factorization.

316242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17577 (or 17574 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 316242 is about 562.3539810475. The cubic root of 316242 is about 68.1302290967.

Adding to 316242 its reverse (242613), we get a palindrome (558855).

It can be divided in two parts, 31624 and 2, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 316242 in words is "three hundred sixteen thousand, two hundred forty-two".