68020722 has 240 divisors, whose sum is σ = 208565280. Its totient is φ = 16329600.

The previous prime is 68020717. The next prime is 68020739. The reversal of 68020722 is 22702086.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1659022 + ... + 1659062.

It is an arithmetic number, because the mean of its divisors is an integer number (869022).

Almost surely, 2^68020722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68020722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104282640).

68020722 is an abundant number, since it is smaller than the sum of its proper divisors (140544558).

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

68020722 is a wasteful number, since it uses less digits than its factorization.

68020722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 83 counting only the distinct ones).

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

The square root of 68020722 is about 8247.4676113338. The cubic root of 68020722 is about 408.2069667932.

The spelling of 68020722 in words is "sixty-eight million, twenty thousand, seven hundred twenty-two".