128413044 has 36 divisors (see below), whose sum is σ = 335795460. Its totient is φ = 41328000.

The previous prime is 128412997. The next prime is 128413049. The reversal of 128413044 is 440314821.

It can be written as a sum of positive squares in 2 ways, for example, as 47196900 + 81216144 = 6870^2 + 9012^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 128412999 and 128413017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128413049) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 60457 + ... + 62544.

Almost surely, 2^128413044 is an apocalyptic number.

It is an amenable number.

128413044 is an abundant number, since it is smaller than the sum of its proper divisors (207382416).

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

128413044 is a wasteful number, since it uses less digits than its factorization.

128413044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123040 (or 123035 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 128413044 is about 11331.9479349316. The cubic root of 128413044 is about 504.5099241952.

Adding to 128413044 its reverse (440314821), we get a palindrome (568727865).

The spelling of 128413044 in words is "one hundred twenty-eight million, four hundred thirteen thousand, forty-four".