20441593 has 2 divisors, whose sum is σ = 20441594. Its totient is φ = 20441592.

The previous prime is 20441591. The next prime is 20441611. The reversal of 20441593 is 39514402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15896169 + 4545424 = 3987^2 + 2132^2 .

It is a cyclic number.

It is not a de Polignac number, because 20441593 - 2¹ = 20441591 is a prime.

Together with 20441591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20441591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220796 + 10220797.

It is an arithmetic number, because the mean of its divisors is an integer number (10220797).

Almost surely, 2^20441593 is an apocalyptic number.

It is an amenable number.

20441593 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441593 is an equidigital number, since it uses as much as digits as its factorization.

20441593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20441593 is about 4521.2379941781. The cubic root of 20441593 is about 273.4250156782.

Adding to 20441593 its reverse (39514402), we get a palindrome (59955995).

The spelling of 20441593 in words is "twenty million, four hundred forty-one thousand, five hundred ninety-three".