8242 has 8 divisors (see below), whose sum is σ = 13356. Its totient is φ = 3792.

The previous prime is 8237. The next prime is 8243. The reversal of 8242 is 2428.

It can be written as a sum of positive squares in 2 ways, for example, as 6561 + 1681 = 81^2 + 41^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (8243) by changing a digit.

8242 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133 + ... + 184.

2⁸²⁴² is an apocalyptic number.

8242 is a deficient number, since it is larger than the sum of its proper divisors (5114).

8242 is a wasteful number, since it uses less digits than its factorization.

8242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332.

The product of its digits is 128, while the sum is 16.

The square root of 8242 is about 90.7854613911. The cubic root of 8242 is about 20.1996666938.

It can be divided in two parts, 8 and 242, that multiplied together give a square (1936 = 44²).

The spelling of 8242 in words is "eight thousand, two hundred forty-two".