726441 has 4 divisors (see below), whose sum is σ = 968592. Its totient is φ = 484292.

The previous prime is 726431. The next prime is 726457. The reversal of 726441 is 144627.

726441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 726441 - 2⁶ = 726377 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (726431) 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, 121071 + ... + 121076.

It is an arithmetic number, because the mean of its divisors is an integer number (242148).

2⁷²⁶⁴⁴¹ is an apocalyptic number.

It is an amenable number.

726441 is a deficient number, since it is larger than the sum of its proper divisors (242151).

726441 is a wasteful number, since it uses less digits than its factorization.

726441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242150.

The product of its digits is 1344, while the sum is 24.

The square root of 726441 is about 852.3150825839. The cubic root of 726441 is about 89.8945678959.

The spelling of 726441 in words is "seven hundred twenty-six thousand, four hundred forty-one".