19841441 has 2 divisors, whose sum is σ = 19841442. Its totient is φ = 19841440.

The previous prime is 19841407. The next prime is 19841443. The reversal of 19841441 is 14414891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17606416 + 2235025 = 4196^2 + 1495^2 .

It is an emirp because it is prime and its reverse (14414891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19841441 - 2¹⁰ = 19840417 is a prime.

Together with 19841443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 19841398 and 19841407.

It is not a weakly prime, because it can be changed into another prime (19841443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9920720 + 9920721.

It is an arithmetic number, because the mean of its divisors is an integer number (9920721).

Almost surely, 2^19841441 is an apocalyptic number.

It is an amenable number.

19841441 is a deficient number, since it is larger than the sum of its proper divisors (1).

19841441 is an equidigital number, since it uses as much as digits as its factorization.

19841441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 32.

The square root of 19841441 is about 4454.3732443521. The cubic root of 19841441 is about 270.7225320540.

The spelling of 19841441 in words is "nineteen million, eight hundred forty-one thousand, four hundred forty-one".