128444 has 12 divisors (see below), whose sum is σ = 227304. Its totient is φ = 63504.

The previous prime is 128437. The next prime is 128449. The reversal of 128444 is 444821.

It is a super-2 number, since 2×128444² = 32995722272, which contains 22 as substring.

128444 is a modest number, since divided by 444 gives 128 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128449) 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, 554 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (18942).

2¹²⁸⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

128444 is a deficient number, since it is larger than the sum of its proper divisors (98860).

128444 is a wasteful number, since it uses less digits than its factorization.

128444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 362 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 128444 is about 358.3908480974. The cubic root of 128444 is about 50.4550460976.

The spelling of 128444 in words is "one hundred twenty-eight thousand, four hundred forty-four".