68195838 has 16 divisors (see below), whose sum is σ = 136979856. Its totient is φ = 22633920.

The previous prime is 68195821. The next prime is 68195861. The reversal of 68195838 is 83859186.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 22993 + ... + 25788.

It is an arithmetic number, because the mean of its divisors is an integer number (8561241).

Almost surely, 2^68195838 is an apocalyptic number.

68195838 is an abundant number, since it is smaller than the sum of its proper divisors (68784018).

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

68195838 is a wasteful number, since it uses less digits than its factorization.

68195838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49019.

The product of its digits is 414720, while the sum is 48.

The square root of 68195838 is about 8258.0771369611. The cubic root of 68195838 is about 408.5569695229.

The spelling of 68195838 in words is "sixty-eight million, one hundred ninety-five thousand, eight hundred thirty-eight".