128411244 has 120 divisors (see below), whose sum is σ = 370443920. Its totient is φ = 38537856.

The previous prime is 128411203. The next prime is 128411281. The reversal of 128411244 is 442114821.

128411244 is a `hidden beast` number, since 1 + 2 + 8 + 411 + 244 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 180762 + ... + 181470.

Almost surely, 2^128411244 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 128411244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185221960).

128411244 is an abundant number, since it is smaller than the sum of its proper divisors (242032676).

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

128411244 is a wasteful number, since it uses less digits than its factorization.

128411244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 770 counting only the distinct ones).

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

The square root of 128411244 is about 11331.8685131800. The cubic root of 128411244 is about 504.5075669007.

The spelling of 128411244 in words is "one hundred twenty-eight million, four hundred eleven thousand, two hundred forty-four".