722428068 has 48 divisors (see below), whose sum is σ = 1763435520. Its totient is φ = 229752864.

The previous prime is 722428043. The next prime is 722428081. The reversal of 722428068 is 860824227.

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 15 ways as a sum of consecutive naturals, for example, 112521 + ... + 118767.

It is an arithmetic number, because the mean of its divisors is an integer number (36738240).

Almost surely, 2^722428068 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 722428068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881717760).

722428068 is an abundant number, since it is smaller than the sum of its proper divisors (1041007452).

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

722428068 is a wasteful number, since it uses less digits than its factorization.

722428068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696 (or 6694 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 722428068 is about 26878.0220254393. The cubic root of 722428068 is about 897.2873332705.

The spelling of 722428068 in words is "seven hundred twenty-two million, four hundred twenty-eight thousand, sixty-eight".