544018 has 4 divisors (see below), whose sum is σ = 816030. Its totient is φ = 272008.

The previous prime is 544013. The next prime is 544021. The reversal of 544018 is 810445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 29929 = 717^2 + 173^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 544018.

It is not an unprimeable number, because it can be changed into a prime (544013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136003 + ... + 136006.

2⁵⁴⁴⁰¹⁸ is an apocalyptic number.

544018 is a deficient number, since it is larger than the sum of its proper divisors (272012).

544018 is a wasteful number, since it uses less digits than its factorization.

544018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272011.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 544018 is about 737.5757588207. The cubic root of 544018 is about 81.6340023935.

The spelling of 544018 in words is "five hundred forty-four thousand, eighteen".