726442141 has 8 divisors (see below), whose sum is σ = 769822200. Its totient is φ = 684284160.

The previous prime is 726442139. The next prime is 726442169. The reversal of 726442141 is 141244627.

It can be written as a sum of positive squares in 4 ways, for example, as 29746116 + 696696025 = 5454^2 + 26395^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 726442141 - 2¹ = 726442139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726442121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304296 + ... + 306673.

It is an arithmetic number, because the mean of its divisors is an integer number (96227775).

Almost surely, 2^726442141 is an apocalyptic number.

It is an amenable number.

726442141 is a deficient number, since it is larger than the sum of its proper divisors (43380059).

726442141 is a wasteful number, since it uses less digits than its factorization.

726442141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611039.

The product of its digits is 10752, while the sum is 31.

The square root of 726442141 is about 26952.5906176011. The cubic root of 726442141 is about 898.9461496085.

Adding to 726442141 its reverse (141244627), we get a palindrome (867686768).

The spelling of 726442141 in words is "seven hundred twenty-six million, four hundred forty-two thousand, one hundred forty-one".