544402241 has 4 divisors (see below), whose sum is σ = 547223172. Its totient is φ = 541581312.

The previous prime is 544402219. The next prime is 544402259. The reversal of 544402241 is 142204445.

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

It can be written as a sum of positive squares in 2 ways, for example, as 123988225 + 420414016 = 11135^2 + 20504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544402241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 544402241.

It is not an unprimeable number, because it can be changed into a prime (544452241) by changing a digit.

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, 1410176 + ... + 1410561.

It is an arithmetic number, because the mean of its divisors is an integer number (136805793).

Almost surely, 2^544402241 is an apocalyptic number.

It is an amenable number.

544402241 is a deficient number, since it is larger than the sum of its proper divisors (2820931).

544402241 is a wasteful number, since it uses less digits than its factorization.

544402241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820930.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 544402241 is about 23332.4289562831. The cubic root of 544402241 is about 816.5321729003.

Adding to 544402241 its reverse (142204445), we get a palindrome (686606686).

The spelling of 544402241 in words is "five hundred forty-four million, four hundred two thousand, two hundred forty-one".