722726560 has 96 divisors (see below), whose sum is σ = 1855526400. Its totient is φ = 265006080.

The previous prime is 722726531. The next prime is 722726573. The reversal of 722726560 is 65627227.

722726560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90406 + ... + 98074.

It is an arithmetic number, because the mean of its divisors is an integer number (19328400).

Almost surely, 2^722726560 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 722726560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (927763200).

722726560 is an abundant number, since it is smaller than the sum of its proper divisors (1132799840).

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

722726560 is a wasteful number, since it uses less digits than its factorization.

722726560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7734 (or 7726 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 722726560 is about 26883.5741671378. The cubic root of 722726560 is about 897.4108963043.

The spelling of 722726560 in words is "seven hundred twenty-two million, seven hundred twenty-six thousand, five hundred sixty".