68128396 has 24 divisors (see below), whose sum is σ = 139941536. Its totient is φ = 28408320.

The previous prime is 68128393. The next prime is 68128397. The reversal of 68128396 is 69382186.

It is not an unprimeable number, because it can be changed into a prime (68128391) 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, 31845 + ... + 33916.

Almost surely, 2^68128396 is an apocalyptic number.

It is an amenable number.

68128396 is an abundant number, since it is smaller than the sum of its proper divisors (71813140).

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

68128396 is a wasteful number, since it uses less digits than its factorization.

68128396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65809 (or 65807 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 68128396 is about 8253.9927307940. The cubic root of 68128396 is about 408.4222448435.

The spelling of 68128396 in words is "sixty-eight million, one hundred twenty-eight thousand, three hundred ninety-six".