128008044 has 18 divisors (see below), whose sum is σ = 323575980. Its totient is φ = 42669336.

The previous prime is 128008043. The next prime is 128008051. The reversal of 128008044 is 440800821.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 128007999 and 128008017.

It is not an unprimeable number, because it can be changed into a prime (128008043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1777854 + ... + 1777925.

Almost surely, 2^128008044 is an apocalyptic number.

It is an amenable number.

128008044 is an abundant number, since it is smaller than the sum of its proper divisors (195567936).

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

128008044 is a wasteful number, since it uses less digits than its factorization.

128008044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555789 (or 3555784 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 128008044 is about 11314.0639913340. The cubic root of 128008044 is about 503.9789768253.

Adding to 128008044 its reverse (440800821), we get a palindrome (568808865).

The spelling of 128008044 in words is "one hundred twenty-eight million, eight thousand, forty-four".