316422 has 12 divisors (see below), whose sum is σ = 685620. Its totient is φ = 105468.

The previous prime is 316403. The next prime is 316423. The reversal of 316422 is 224613.

It is a happy number.

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: 17579 = 316422 / (3 + 1 + 6 + 4 + 2 + 2).

It is a d-powerful number, because it can be written as 3¹¹ + 1 + 4 + 6 + 2¹³ + 2¹⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 316395 and 316404.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 316422.

It is not an unprimeable number, because it can be changed into a prime (316423) by changing a digit.

316422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8772 + ... + 8807.

It is an arithmetic number, because the mean of its divisors is an integer number (57135).

2³¹⁶⁴²² is an apocalyptic number.

316422 is an abundant number, since it is smaller than the sum of its proper divisors (369198).

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

316422 is a wasteful number, since it uses less digits than its factorization.

316422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17587 (or 17584 counting only the distinct ones).

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

The square root of 316422 is about 562.5139998258. The cubic root of 316422 is about 68.1431528653.

Subtracting from 316422 its reverse (224613), we obtain a square (91809 = 303²).

The spelling of 316422 in words is "three hundred sixteen thousand, four hundred twenty-two".