128844 has 24 divisors (see below), whose sum is σ = 334320. Its totient is φ = 42912.

The previous prime is 128837. The next prime is 128857. The reversal of 128844 is 448821.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 489 + ... + 704.

It is an arithmetic number, because the mean of its divisors is an integer number (13930).

2¹²⁸⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

128844 is an abundant number, since it is smaller than the sum of its proper divisors (205476).

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

128844 is a wasteful number, since it uses less digits than its factorization.

128844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206 (or 1198 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 128844 is about 358.9484642675. The cubic root of 128844 is about 50.5073674837.

The spelling of 128844 in words is "one hundred twenty-eight thousand, eight hundred forty-four".