726241 has 4 divisors (see below), whose sum is σ = 727984. Its totient is φ = 724500.

The previous prime is 726221. The next prime is 726287. The reversal of 726241 is 142627.

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, and also an emirpimes, since its reverse is a distinct semiprime: 142627 = 193 ⋅739.

It is a cyclic number.

It is not a de Polignac number, because 726241 - 2¹³ = 718049 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (726221) 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, 166 + ... + 1216.

It is an arithmetic number, because the mean of its divisors is an integer number (181996).

2⁷²⁶²⁴¹ is an apocalyptic number.

It is an amenable number.

726241 is a deficient number, since it is larger than the sum of its proper divisors (1743).

726241 is a wasteful number, since it uses less digits than its factorization.

726241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742.

The product of its digits is 672, while the sum is 22.

The square root of 726241 is about 852.1977470048. The cubic root of 726241 is about 89.8863173687.

Adding to 726241 its reverse (142627), we get a palindrome (868868).

The spelling of 726241 in words is "seven hundred twenty-six thousand, two hundred forty-one".