844144 has 20 divisors (see below), whose sum is σ = 1869424. Its totient is φ = 361728.

The previous prime is 844141. The next prime is 844153. The reversal of 844144 is 441448.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3657 + ... + 3880.

2⁸⁴⁴¹⁴⁴ is an apocalyptic number.

It is an amenable number.

844144 is an abundant number, since it is smaller than the sum of its proper divisors (1025280).

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

844144 is a wasteful number, since it uses less digits than its factorization.

844144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7552 (or 7546 counting only the distinct ones).

The product of its digits is 2048, while the sum is 25.

The square root of 844144 is about 918.7730949478. The cubic root of 844144 is about 94.5087848649.

The spelling of 844144 in words is "eight hundred forty-four thousand, one hundred forty-four".