722072 has 32 divisors (see below), whose sum is σ = 1496880. Its totient is φ = 324480.

The previous prime is 722069. The next prime is 722077. The reversal of 722072 is 270227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5447 + ... + 5577.

2⁷²²⁰⁷² 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 722072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748440).

722072 is an abundant number, since it is smaller than the sum of its proper divisors (774808).

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

722072 is a wasteful number, since it uses less digits than its factorization.

722072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 722072 is about 849.7481979975. The cubic root of 722072 is about 89.7139891689.

Adding to 722072 its reverse (270227), we get a palindrome (992299).

The spelling of 722072 in words is "seven hundred twenty-two thousand, seventy-two", and thus it is an iban number.