844280 has 16 divisors (see below), whose sum is σ = 1899720. Its totient is φ = 337696.

The previous prime is 844279. The next prime is 844289. The reversal of 844280 is 82448.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 844280.

It is not an unprimeable number, because it can be changed into a prime (844289) 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 in 3 ways as a sum of consecutive naturals, for example, 10514 + ... + 10593.

2⁸⁴⁴²⁸⁰ is an apocalyptic number.

It is an amenable number.

844280 is an abundant number, since it is smaller than the sum of its proper divisors (1055440).

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

844280 is a wasteful number, since it uses less digits than its factorization.

844280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21118 (or 21114 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 844280 is about 918.8471037120. The cubic root of 844280 is about 94.5138600277.

The spelling of 844280 in words is "eight hundred forty-four thousand, two hundred eighty".