128448844 has 12 divisors (see below), whose sum is σ = 224910000. Its totient is φ = 64188848.

The previous prime is 128448833. The next prime is 128448863. The reversal of 128448844 is 448844821.

It is a self number, because there is not a number n which added to its sum of digits gives 128448844.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282 + ... + 16030.

It is an arithmetic number, because the mean of its divisors is an integer number (18742500).

Almost surely, 2^128448844 is an apocalyptic number.

It is an amenable number.

128448844 is a deficient number, since it is larger than the sum of its proper divisors (96461156).

128448844 is a wasteful number, since it uses less digits than its factorization.

128448844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17792 (or 17790 counting only the distinct ones).

The product of its digits is 262144, while the sum is 43.

The square root of 128448844 is about 11333.5274297105. The cubic root of 128448844 is about 504.5568035893.

The spelling of 128448844 in words is "one hundred twenty-eight million, four hundred forty-eight thousand, eight hundred forty-four".