722740726 has 8 divisors (see below), whose sum is σ = 1121494320. Its totient is φ = 348909288.

The previous prime is 722740723. The next prime is 722740729. The reversal of 722740726 is 627047227.

722740726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (722740723) and next prime (722740729).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722740723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6230466 + ... + 6230581.

It is an arithmetic number, because the mean of its divisors is an integer number (140186790).

Almost surely, 2^722740726 is an apocalyptic number.

722740726 is a deficient number, since it is larger than the sum of its proper divisors (398753594).

722740726 is a wasteful number, since it uses less digits than its factorization.

722740726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12461078.

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 722740726 is about 26883.8376352782. The cubic root of 722740726 is about 897.4167595821.

The spelling of 722740726 in words is "seven hundred twenty-two million, seven hundred forty thousand, seven hundred twenty-six".