68442168 has 32 divisors (see below), whose sum is σ = 171394560. Its totient is φ = 22775520.

The previous prime is 68442167. The next prime is 68442169. The reversal of 68442168 is 86124486.

It is an interprime number because it is at equal distance from previous prime (68442167) and next prime (68442169).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68442167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14521 + ... + 18647.

It is an arithmetic number, because the mean of its divisors is an integer number (5356080).

Almost surely, 2^68442168 is an apocalyptic number.

It is an amenable number.

68442168 is an abundant number, since it is smaller than the sum of its proper divisors (102952392).

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

68442168 is a wasteful number, since it uses less digits than its factorization.

68442168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4827 (or 4823 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 68442168 is about 8272.9781820092. The cubic root of 68442168 is about 409.0482942636.

The spelling of 68442168 in words is "sixty-eight million, four hundred forty-two thousand, one hundred sixty-eight".