544636 has 12 divisors (see below), whose sum is σ = 973728. Its totient is φ = 266432.

The previous prime is 544631. The next prime is 544651. The reversal of 544636 is 636445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261 + ... + 1636.

It is an arithmetic number, because the mean of its divisors is an integer number (81144).

2⁵⁴⁴⁶³⁶ is an apocalyptic number.

It is an amenable number.

544636 is a deficient number, since it is larger than the sum of its proper divisors (429092).

544636 is a wasteful number, since it uses less digits than its factorization.

544636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948 (or 2946 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 544636 is about 737.9945799259. The cubic root of 544636 is about 81.6649025488.

Subtracting 544636 from its reverse (636445), we obtain a square (91809 = 303²).

The spelling of 544636 in words is "five hundred forty-four thousand, six hundred thirty-six".