68140608 has 56 divisors (see below), whose sum is σ = 183014112. Its totient is φ = 22370304.

The previous prime is 68140601. The next prime is 68140619. The reversal of 68140608 is 80604186.

It is not an unprimeable number, because it can be changed into a prime (68140601) 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, 10216 + ... + 15512.

Almost surely, 2^68140608 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 68140608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91507056).

68140608 is an abundant number, since it is smaller than the sum of its proper divisors (114873504).

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

68140608 is a wasteful number, since it uses less digits than its factorization.

68140608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5379 (or 5369 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 68140608 is about 8254.7324608372. The cubic root of 68140608 is about 408.4466465848.

The spelling of 68140608 in words is "sixty-eight million, one hundred forty thousand, six hundred eight".