68220702 has 72 divisors (see below), whose sum is σ = 168353640. Its totient is φ = 19776960.

The previous prime is 68220701. The next prime is 68220707. The reversal of 68220702 is 20702286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68220701) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 625824 + ... + 625932.

It is an arithmetic number, because the mean of its divisors is an integer number (2338245).

Almost surely, 2^68220702 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68220702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84176820).

68220702 is an abundant number, since it is smaller than the sum of its proper divisors (100132938).

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

68220702 is a wasteful number, since it uses less digits than its factorization.

68220702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 68220702 is about 8259.5824349661. The cubic root of 68220702 is about 408.6066163756.

Adding to 68220702 its reverse (20702286), we get a palindrome (88922988).

The spelling of 68220702 in words is "sixty-eight million, two hundred twenty thousand, seven hundred two".