68042 has 8 divisors (see below), whose sum is σ = 109956. Its totient is φ = 31392.

The previous prime is 68041. The next prime is 68053. The reversal of 68042 is 24086.

It can be written as a sum of positive squares in 2 ways, for example, as 67081 + 961 = 259^2 + 31^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1283 + ... + 1334.

2⁶⁸⁰⁴² is an apocalyptic number.

68042 is a deficient number, since it is larger than the sum of its proper divisors (41914).

68042 is a wasteful number, since it uses less digits than its factorization.

68042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 68042 is about 260.8486151008. The cubic root of 68042 is about 40.8249526972.

Subtracting from 68042 its reverse (24086), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 68042 in words is "sixty-eight thousand, forty-two".