268342 has 4 divisors (see below), whose sum is σ = 402516. Its totient is φ = 134170.

The previous prime is 268297. The next prime is 268343. The reversal of 268342 is 243862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243862 = 2 ⋅121931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268343) by changing a digit.

268342 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 as a sum of consecutive naturals, namely, 67084 + ... + 67087.

It is an arithmetic number, because the mean of its divisors is an integer number (100629).

2²⁶⁸³⁴² is an apocalyptic number.

268342 is a deficient number, since it is larger than the sum of its proper divisors (134174).

268342 is a wasteful number, since it uses less digits than its factorization.

268342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134173.

The product of its digits is 2304, while the sum is 25.

The square root of 268342 is about 518.0173742260. The cubic root of 268342 is about 64.5004707215.

The spelling of 268342 in words is "two hundred sixty-eight thousand, three hundred forty-two".