544449813 has 16 divisors (see below), whose sum is σ = 760337280. Its totient is φ = 345882944.

The previous prime is 544449811. The next prime is 544449821. The reversal of 544449813 is 318944445.

It is a cyclic number.

It is not a de Polignac number, because 544449813 - 2¹ = 544449811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544449811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3895 + ... + 33227.

It is an arithmetic number, because the mean of its divisors is an integer number (47521080).

Almost surely, 2^544449813 is an apocalyptic number.

It is an amenable number.

544449813 is a deficient number, since it is larger than the sum of its proper divisors (215887467).

544449813 is a wasteful number, since it uses less digits than its factorization.

544449813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29628.

The product of its digits is 276480, while the sum is 42.

The square root of 544449813 is about 23333.4483735259. The cubic root of 544449813 is about 816.5559561340. Note that the first 3 decimals are identical.

The spelling of 544449813 in words is "five hundred forty-four million, four hundred forty-nine thousand, eight hundred thirteen".