68183856 has 240 divisors, whose sum is σ = 227485440. Its totient is φ = 19595520.

The previous prime is 68183851. The next prime is 68183903. The reversal of 68183856 is 65838186.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

Its product of digits (276480) is a multiple of the sum of its prime divisors (108).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68183851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 960301 + ... + 960371.

It is an arithmetic number, because the mean of its divisors is an integer number (947856).

Almost surely, 2^68183856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68183856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113742720).

68183856 is an abundant number, since it is smaller than the sum of its proper divisors (159301584).

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

68183856 is a wasteful number, since it uses less digits than its factorization.

68183856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 108 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 68183856 is about 8257.3516335445. The cubic root of 68183856 is about 408.5330403190.

The spelling of 68183856 in words is "sixty-eight million, one hundred eighty-three thousand, eight hundred fifty-six".