724230845 has 8 divisors (see below), whose sum is σ = 935929176. Its totient is φ = 534816576.

The previous prime is 724230817. The next prime is 724230853. The reversal of 724230845 is 548032427.

It can be written as a sum of positive squares in 4 ways, for example, as 145395364 + 578835481 = 12058^2 + 24059^2 .

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 724230845 - 2⁶ = 724230781 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5570942 + ... + 5571071.

It is an arithmetic number, because the mean of its divisors is an integer number (116991147).

Almost surely, 2^724230845 is an apocalyptic number.

It is an amenable number.

724230845 is a deficient number, since it is larger than the sum of its proper divisors (211698331).

724230845 is a wasteful number, since it uses less digits than its factorization.

724230845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11142031.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 724230845 is about 26911.5373956970. The cubic root of 724230845 is about 898.0330893077.

The spelling of 724230845 in words is "seven hundred twenty-four million, two hundred thirty thousand, eight hundred forty-five".