844844080 has 20 divisors (see below), whose sum is σ = 1964262672. Its totient is φ = 337937600.

The previous prime is 844844041. The next prime is 844844081. The reversal of 844844080 is 80448448.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×844844080² = 1427523039022092800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (844844081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5280196 + ... + 5280355.

Almost surely, 2^844844080 is an apocalyptic number.

844844080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

844844080 is an abundant number, since it is smaller than the sum of its proper divisors (1119418592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

844844080 is a wasteful number, since it uses less digits than its factorization.

844844080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10560564 (or 10560558 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The square root of 844844080 is about 29066.2016782379. The cubic root of 844844080 is about 945.3490419524.

The spelling of 844844080 in words is "eight hundred forty-four million, eight hundred forty-four thousand, eighty".