68342768 has 40 divisors (see below), whose sum is σ = 145042800. Its totient is φ = 31002624.

The previous prime is 68342759. The next prime is 68342783. The reversal of 68342768 is 86724386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9488 + ... + 15056.

It is an arithmetic number, because the mean of its divisors is an integer number (3626070).

Almost surely, 2^68342768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68342768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72521400).

68342768 is an abundant number, since it is smaller than the sum of its proper divisors (76700032).

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

68342768 is a wasteful number, since it uses less digits than its factorization.

68342768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649 (or 5643 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 68342768 is about 8266.9684891138. The cubic root of 68342768 is about 408.8501751749.

The spelling of 68342768 in words is "sixty-eight million, three hundred forty-two thousand, seven hundred sixty-eight".