128244 has 12 divisors (see below), whose sum is σ = 299264. Its totient is φ = 42744.

The previous prime is 128239. The next prime is 128257. The reversal of 128244 is 442821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 128244.

It is a congruent number.

It is an unprimeable number.

128244 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 5332 + ... + 5355.

2¹²⁸²⁴⁴ is an apocalyptic number.

It is an amenable number.

128244 is an abundant number, since it is smaller than the sum of its proper divisors (171020).

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

128244 is a wasteful number, since it uses less digits than its factorization.

128244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10694 (or 10692 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 128244 is about 358.1117144133. Note that the first 3 decimals coincide. The cubic root of 128244 is about 50.4288446627.

It can be divided in two parts, 1282 and 44, that added together give a triangular number (1326 = T₅₁).

The spelling of 128244 in words is "one hundred twenty-eight thousand, two hundred forty-four".