68091042 has 32 divisors (see below), whose sum is σ = 139785408. Its totient is φ = 22104576.

The previous prime is 68091019. The next prime is 68091071. The reversal of 68091042 is 24019086.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35418 + ... + 37290.

It is an arithmetic number, because the mean of its divisors is an integer number (4368294).

Almost surely, 2^68091042 is an apocalyptic number.

68091042 is an abundant number, since it is smaller than the sum of its proper divisors (71694366).

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

68091042 is a wasteful number, since it uses less digits than its factorization.

68091042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 68091042 is about 8251.7296368701. The cubic root of 68091042 is about 408.3475868226.

The spelling of 68091042 in words is "sixty-eight million, ninety-one thousand, forty-two".