722766368 has 48 divisors (see below), whose sum is σ = 1478373120. Its totient is φ = 347558400.

The previous prime is 722766367. The next prime is 722766377. The reversal of 722766368 is 863667227.

It is a super-2 number, since 2×722766368² = 1044782445423822848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (722766367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89273 + ... + 97031.

It is an arithmetic number, because the mean of its divisors is an integer number (30799440).

Almost surely, 2^722766368 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 722766368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (739186560).

722766368 is an abundant number, since it is smaller than the sum of its proper divisors (755606752).

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

722766368 is a wasteful number, since it uses less digits than its factorization.

722766368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7881 (or 7873 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 47.

The square root of 722766368 is about 26884.3145346873. The cubic root of 722766368 is about 897.4273725574.

The spelling of 722766368 in words is "seven hundred twenty-two million, seven hundred sixty-six thousand, three hundred sixty-eight".