844484409 has 12 divisors (see below), whose sum is σ = 1221111216. Its totient is φ = 562389432.

The previous prime is 844484387. The next prime is 844484419. The reversal of 844484409 is 904484448.

It is not a de Polignac number, because 844484409 - 2¹⁷ = 844353337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (844484419) 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 11 ways as a sum of consecutive naturals, for example, 41019 + ... + 58064.

It is an arithmetic number, because the mean of its divisors is an integer number (101759268).

Almost surely, 2^844484409 is an apocalyptic number.

It is an amenable number.

844484409 is a deficient number, since it is larger than the sum of its proper divisors (376626807).

844484409 is a wasteful number, since it uses less digits than its factorization.

844484409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100036 (or 100033 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The square root of 844484409 is about 29060.0139194736. The cubic root of 844484409 is about 945.2148700953.

The spelling of 844484409 in words is "eight hundred forty-four million, four hundred eighty-four thousand, four hundred nine".