720500041 has 4 divisors (see below), whose sum is σ = 745344900. Its totient is φ = 695655184.

The previous prime is 720500029. The next prime is 720500051. The reversal of 720500041 is 140005027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140005027 = 9623 ⋅14549.

It can be written as a sum of positive squares in 2 ways, for example, as 191684025 + 528816016 = 13845^2 + 22996^2 .

It is a cyclic number.

It is not a de Polignac number, because 720500041 - 2¹⁷ = 720368969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720499991 and 720500018.

It is not an unprimeable number, because it can be changed into a prime (720500051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12422386 + ... + 12422443.

It is an arithmetic number, because the mean of its divisors is an integer number (186336225).

Almost surely, 2^720500041 is an apocalyptic number.

It is an amenable number.

720500041 is a deficient number, since it is larger than the sum of its proper divisors (24844859).

720500041 is a wasteful number, since it uses less digits than its factorization.

720500041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24844858.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 720500041 is about 26842.1318266638. The cubic root of 720500041 is about 896.4883907508.

Adding to 720500041 its reverse (140005027), we get a palindrome (860505068).

The spelling of 720500041 in words is "seven hundred twenty million, five hundred thousand, forty-one".