544421443 has 2 divisors, whose sum is σ = 544421444. Its totient is φ = 544421442.

The previous prime is 544421419. The next prime is 544421453. The reversal of 544421443 is 344124445.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 544421443 - 2¹⁷ = 544290371 is a prime.

It is not a weakly prime, because it can be changed into another prime (544421453) 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 as a sum of consecutive naturals, namely, 272210721 + 272210722.

It is an arithmetic number, because the mean of its divisors is an integer number (272210722).

Almost surely, 2^544421443 is an apocalyptic number.

544421443 is a deficient number, since it is larger than the sum of its proper divisors (1).

544421443 is an equidigital number, since it uses as much as digits as its factorization.

544421443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 31.

The square root of 544421443 is about 23332.8404400322. The cubic root of 544421443 is about 816.5417729505.

Adding to 544421443 its reverse (344124445), we get a palindrome (888545888).

The spelling of 544421443 in words is "five hundred forty-four million, four hundred twenty-one thousand, four hundred forty-three".