544544020 has 24 divisors (see below), whose sum is σ = 1182976200. Its totient is φ = 210306432.

The previous prime is 544544003. The next prime is 544544027. The reversal of 544544020 is 20445445.

It can be written as a sum of positive squares in 4 ways, for example, as 51437584 + 493106436 = 7172^2 + 22206^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 544544020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544544027) 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 7 ways as a sum of consecutive naturals, for example, 468855 + ... + 470014.

It is an arithmetic number, because the mean of its divisors is an integer number (49290675).

Almost surely, 2^544544020 is an apocalyptic number.

It is an amenable number.

544544020 is an abundant number, since it is smaller than the sum of its proper divisors (638432180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

544544020 is a wasteful number, since it uses less digits than its factorization.

544544020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938907 (or 938905 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 544544020 is about 23335.4669976840. The cubic root of 544544020 is about 816.6030500679.

Adding to 544544020 its reverse (20445445), we get a palindrome (564989465).

The spelling of 544544020 in words is "five hundred forty-four million, five hundred forty-four thousand, twenty".