544642768 has 20 divisors (see below), whose sum is σ = 1077698880. Its totient is φ = 266526944.

The previous prime is 544642759. The next prime is 544642789. The reversal of 544642768 is 867246445.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 361378 + ... + 362881.

It is an arithmetic number, because the mean of its divisors is an integer number (53884944).

Almost surely, 2^544642768 is an apocalyptic number.

It is an amenable number.

544642768 is a deficient number, since it is larger than the sum of its proper divisors (533056112).

544642768 is a wasteful number, since it uses less digits than its factorization.

544642768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724314 (or 724308 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 46.

The square root of 544642768 is about 23337.5827368646. The cubic root of 544642768 is about 816.6524082105.

The spelling of 544642768 in words is "five hundred forty-four million, six hundred forty-two thousand, seven hundred sixty-eight".