722760 has 64 divisors (see below), whose sum is σ = 2289600. Its totient is φ = 182016.

The previous prime is 722749. The next prime is 722783. The reversal of 722760 is 67227.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 722760.

It is an unprimeable number.

722760 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2122 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (35775).

2⁷²²⁷⁶⁰ 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 722760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1144800).

722760 is an abundant number, since it is smaller than the sum of its proper divisors (1566840).

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

722760 is a wasteful number, since it uses less digits than its factorization.

722760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 722760 is about 850.1529274195. The cubic root of 722760 is about 89.7424736927.

Adding to 722760 its reverse (67227), we get a palindrome (789987).

The spelling of 722760 in words is "seven hundred twenty-two thousand, seven hundred sixty".