844969449 has 8 divisors (see below), whose sum is σ = 1162968832. Its totient is φ = 545141520.

The previous prime is 844969441. The next prime is 844969457. The reversal of 844969449 is 944969448.

It is an interprime number because it is at equal distance from previous prime (844969441) and next prime (844969457).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 844969449 - 2³ = 844969441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (844969441) 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 in 7 ways as a sum of consecutive naturals, for example, 4542754 + ... + 4542939.

It is an arithmetic number, because the mean of its divisors is an integer number (145371104).

Almost surely, 2^844969449 is an apocalyptic number.

It is an amenable number.

844969449 is a deficient number, since it is larger than the sum of its proper divisors (317999383).

844969449 is a wasteful number, since it uses less digits than its factorization.

844969449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9085727.

The product of its digits is 8957952, while the sum is 57.

The square root of 844969449 is about 29068.3582095721. The cubic root of 844969449 is about 945.3958007193.

Subtracting 844969449 from its reverse (944969448), we obtain a palindrome (99999999).

The spelling of 844969449 in words is "eight hundred forty-four million, nine hundred sixty-nine thousand, four hundred forty-nine".