68226816 has 180 divisors, whose sum is σ = 217559272. Its totient is φ = 18966528.

The previous prime is 68226803. The next prime is 68226857. The reversal of 68226816 is 61862286.

It is a nude number because it is divisible by every one of its digits.

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 19 ways as a sum of consecutive naturals, for example, 1843950 + ... + 1843986.

Almost surely, 2^68226816 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 68226816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108779636).

68226816 is an abundant number, since it is smaller than the sum of its proper divisors (149332456).

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

68226816 is an frugal number, since it uses more digits than its factorization.

68226816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 49 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 68226816 is about 8259.9525422365. The cubic root of 68226816 is about 408.6188225738.

The spelling of 68226816 in words is "sixty-eight million, two hundred twenty-six thousand, eight hundred sixteen".