128412128 has 48 divisors (see below), whose sum is σ = 284116896. Its totient is φ = 56686080.

The previous prime is 128412103. The next prime is 128412139. The reversal of 128412128 is 821214821.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 128412128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858 + ... + 16278.

It is an arithmetic number, because the mean of its divisors is an integer number (5919102).

Almost surely, 2^128412128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128412128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142058448).

128412128 is an abundant number, since it is smaller than the sum of its proper divisors (155704768).

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

128412128 is a wasteful number, since it uses less digits than its factorization.

128412128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13467 (or 13459 counting only the distinct ones).

The product of its digits is 2048, while the sum is 29.

The square root of 128412128 is about 11331.9075181542. The cubic root of 128412128 is about 504.5087245970.

Adding to 128412128 its reverse (821214821), we get a palindrome (949626949).

The spelling of 128412128 in words is "one hundred twenty-eight million, four hundred twelve thousand, one hundred twenty-eight".