68708128 has 24 divisors (see below), whose sum is σ = 138571020. Its totient is φ = 33515520.

The previous prime is 68708119. The next prime is 68708131. The reversal of 68708128 is 82180786.

It can be written as a sum of positive squares in 2 ways, for example, as 66781584 + 1926544 = 8172^2 + 1388^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24873 + ... + 27496.

Almost surely, 2^68708128 is an apocalyptic number.

It is an amenable number.

68708128 is an abundant number, since it is smaller than the sum of its proper divisors (69862892).

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

68708128 is a wasteful number, since it uses less digits than its factorization.

68708128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52420 (or 52412 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 68708128 is about 8289.0366147098. The cubic root of 68708128 is about 409.5774508461.

The spelling of 68708128 in words is "sixty-eight million, seven hundred eight thousand, one hundred twenty-eight".