68078208 has 128 divisors (see below), whose sum is σ = 200931840. Its totient is φ = 20249600.

The previous prime is 68078203. The next prime is 68078209. The reversal of 68078208 is 80287086.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (68078203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299791 + ... + 300017.

It is an arithmetic number, because the mean of its divisors is an integer number (1569780).

Almost surely, 2^68078208 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 68078208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100465920).

68078208 is an abundant number, since it is smaller than the sum of its proper divisors (132853632).

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

68078208 is a wasteful number, since it uses less digits than its factorization.

68078208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 68078208 is about 8250.9519450788. The cubic root of 68078208 is about 408.3219296922.

It can be divided in two parts, 68078 and 208, that added together give a palindrome (68286).

The spelling of 68078208 in words is "sixty-eight million, seventy-eight thousand, two hundred eight".