722246506 has 64 divisors (see below), whose sum is σ = 1229230080. Its totient is φ = 316673280.

The previous prime is 722246467. The next prime is 722246521. The reversal of 722246506 is 605642227.

722246506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6391506 + ... + 6391618.

It is an arithmetic number, because the mean of its divisors is an integer number (19206720).

Almost surely, 2^722246506 is an apocalyptic number.

722246506 is a deficient number, since it is larger than the sum of its proper divisors (506983574).

722246506 is a wasteful number, since it uses less digits than its factorization.

722246506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 722246506 is about 26874.6442953204. The cubic root of 722246506 is about 897.2121576510.

The spelling of 722246506 in words is "seven hundred twenty-two million, two hundred forty-six thousand, five hundred six".