128030044 has 12 divisors (see below), whose sum is σ = 229517568. Its totient is φ = 62453600.

The previous prime is 128029991. The next prime is 128030051. The reversal of 128030044 is 440030821.

It is a junction number, because it is equal to n+sod(n) for n = 128029997 and 128030024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390172 + ... + 390499.

It is an arithmetic number, because the mean of its divisors is an integer number (19126464).

Almost surely, 2^128030044 is an apocalyptic number.

It is an amenable number.

128030044 is a deficient number, since it is larger than the sum of its proper divisors (101487524).

128030044 is a wasteful number, since it uses less digits than its factorization.

128030044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780716 (or 780714 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 128030044 is about 11315.0361908392. The cubic root of 128030044 is about 504.0078471525.

Adding to 128030044 its reverse (440030821), we get a palindrome (568060865).

The spelling of 128030044 in words is "one hundred twenty-eight million, thirty thousand, forty-four".