20441849 has 2 divisors, whose sum is σ = 20441850. Its totient is φ = 20441848.

The previous prime is 20441833. The next prime is 20441857. The reversal of 20441849 is 94814402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 11449 = 4520^2 + 107^2 .

It is a cyclic number.

It is not a de Polignac number, because 20441849 - 2⁴ = 20441833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20441809) 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, 10220924 + 10220925.

It is an arithmetic number, because the mean of its divisors is an integer number (10220925).

Almost surely, 2^20441849 is an apocalyptic number.

It is an amenable number.

20441849 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441849 is an equidigital number, since it uses as much as digits as its factorization.

20441849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 20441849 is about 4521.2663049195. The cubic root of 20441849 is about 273.4261570848.

The spelling of 20441849 in words is "twenty million, four hundred forty-one thousand, eight hundred forty-nine".