544289868 has 72 divisors (see below), whose sum is σ = 1451136960. Its totient is φ = 178336080.

The previous prime is 544289861. The next prime is 544289881. The reversal of 544289868 is 868982445.

544289868 is a `hidden beast` number, since 544 + 2 + 8 + 98 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (544289861) 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 23 ways as a sum of consecutive naturals, for example, 52603 + ... + 62093.

It is an arithmetic number, because the mean of its divisors is an integer number (20154680).

Almost surely, 2^544289868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 544289868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725568480).

544289868 is an abundant number, since it is smaller than the sum of its proper divisors (906847092).

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

544289868 is a wasteful number, since it uses less digits than its factorization.

544289868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9569 (or 9555 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 544289868 is about 23330.0207458116. The cubic root of 544289868 is about 816.4759874324.

The spelling of 544289868 in words is "five hundred forty-four million, two hundred eighty-nine thousand, eight hundred sixty-eight".