722220733 has 32 divisors (see below), whose sum is σ = 834527232. Its totient is φ = 620222400.

The previous prime is 722220721. The next prime is 722220739. The reversal of 722220733 is 337022227.

It is a cyclic number.

It is not a de Polignac number, because 722220733 - 2⁵ = 722220701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722220739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1230066 + ... + 1230652.

It is an arithmetic number, because the mean of its divisors is an integer number (26078976).

Almost surely, 2^722220733 is an apocalyptic number.

It is an amenable number.

722220733 is a deficient number, since it is larger than the sum of its proper divisors (112306499).

722220733 is a wasteful number, since it uses less digits than its factorization.

722220733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 722220733 is about 26874.1647870218. The cubic root of 722220733 is about 897.2014853372.

The spelling of 722220733 in words is "seven hundred twenty-two million, two hundred twenty thousand, seven hundred thirty-three".