726266 has 8 divisors (see below), whose sum is σ = 1107444. Its totient is φ = 357120.

The previous prime is 726221. The next prime is 726287. The reversal of 726266 is 662627.

It can be written as a sum of positive squares in 2 ways, for example, as 461041 + 265225 = 679^2 + 515^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855 + ... + 3098.

2⁷²⁶²⁶⁶ is an apocalyptic number.

726266 is a deficient number, since it is larger than the sum of its proper divisors (381178).

726266 is a wasteful number, since it uses less digits than its factorization.

726266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016.

The product of its digits is 6048, while the sum is 29.

The square root of 726266 is about 852.2124148356. The cubic root of 726266 is about 89.8873487674.

The spelling of 726266 in words is "seven hundred twenty-six thousand, two hundred sixty-six".