726455401 has 4 divisors (see below), whose sum is σ = 830234752. Its totient is φ = 622676052.

The previous prime is 726455399. The next prime is 726455419. The reversal of 726455401 is 104554627.

726455401 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 726455401 - 2¹ = 726455399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726455501) 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, 51889665 + ... + 51889678.

It is an arithmetic number, because the mean of its divisors is an integer number (207558688).

Almost surely, 2^726455401 is an apocalyptic number.

It is an amenable number.

726455401 is a deficient number, since it is larger than the sum of its proper divisors (103779351).

726455401 is a wasteful number, since it uses less digits than its factorization.

726455401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103779350.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 726455401 is about 26952.8366039643. The cubic root of 726455401 is about 898.9516191670.

The spelling of 726455401 in words is "seven hundred twenty-six million, four hundred fifty-five thousand, four hundred one".