68223078 has 48 divisors (see below), whose sum is σ = 184294656. Its totient is φ = 17719920.

The previous prime is 68223061. The next prime is 68223101. The reversal of 68223078 is 87032286.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23226 + ... + 25997.

It is an arithmetic number, because the mean of its divisors is an integer number (3839472).

Almost surely, 2^68223078 is an apocalyptic number.

68223078 is an abundant number, since it is smaller than the sum of its proper divisors (116071578).

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

68223078 is a wasteful number, since it uses less digits than its factorization.

68223078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49249 (or 49246 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 68223078 is about 8259.7262666507. The cubic root of 68223078 is about 408.6113599897.

The spelling of 68223078 in words is "sixty-eight million, two hundred twenty-three thousand, seventy-eight".