128044128 has 48 divisors (see below), whose sum is σ = 350735616. Its totient is φ = 40824960.

The previous prime is 128044123. The next prime is 128044129. The reversal of 128044128 is 821440821.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 128044095 and 128044104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128044123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26788 + ... + 31203.

It is an arithmetic number, because the mean of its divisors is an integer number (7306992).

Almost surely, 2^128044128 is an apocalyptic number.

It is an amenable number.

128044128 is an abundant number, since it is smaller than the sum of its proper divisors (222691488).

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

128044128 is a wasteful number, since it uses less digits than its factorization.

128044128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58027 (or 58019 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 128044128 is about 11315.6585314333. The cubic root of 128044128 is about 504.0263276748.

Adding to 128044128 its reverse (821440821), we get a palindrome (949484949).

The spelling of 128044128 in words is "one hundred twenty-eight million, forty-four thousand, one hundred twenty-eight".