726026489 has 16 divisors (see below), whose sum is σ = 753786000. Its totient is φ = 698919936.

The previous prime is 726026467. The next prime is 726026507. The reversal of 726026489 is 984620627.

726026489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 640000 + 725386489 = 800^2 + 26933^2 .

It is a cyclic number.

It is not a de Polignac number, because 726026489 - 2²⁴ = 709249273 is a prime.

It is a super-2 number, since 2×726026489² = 1054228925459334242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726026419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702317 + ... + 703349.

It is an arithmetic number, because the mean of its divisors is an integer number (47111625).

Almost surely, 2^726026489 is an apocalyptic number.

It is an amenable number.

726026489 is a deficient number, since it is larger than the sum of its proper divisors (27759511).

726026489 is a wasteful number, since it uses less digits than its factorization.

726026489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 726026489 is about 26944.8787156298. The cubic root of 726026489 is about 898.7746654068.

The spelling of 726026489 in words is "seven hundred twenty-six million, twenty-six thousand, four hundred eighty-nine".