722263224 has 128 divisors (see below), whose sum is σ = 1970749440. Its totient is φ = 219727872.

The previous prime is 722263219. The next prime is 722263231. The reversal of 722263224 is 422362227.

It is a happy number.

722263224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 722263191 and 722263200.

It is a congruent 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, 2746117 + ... + 2746379.

It is an arithmetic number, because the mean of its divisors is an integer number (15396480).

Almost surely, 2^722263224 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 722263224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985374720).

722263224 is an abundant number, since it is smaller than the sum of its proper divisors (1248486216).

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

722263224 is a wasteful number, since it uses less digits than its factorization.

722263224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 465 counting only the distinct ones).

The product of its digits is 16128, while the sum is 30.

The square root of 722263224 is about 26874.9553301954. The cubic root of 722263224 is about 897.2190802538.

The spelling of 722263224 in words is "seven hundred twenty-two million, two hundred sixty-three thousand, two hundred twenty-four".