128044816 has 40 divisors (see below), whose sum is σ = 263983104. Its totient is φ = 59957760.

The previous prime is 128044769. The next prime is 128044823. The reversal of 128044816 is 618440821.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59601 + ... + 61711.

Almost surely, 2^128044816 is an apocalyptic number.

128044816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128044816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131991552).

128044816 is an abundant number, since it is smaller than the sum of its proper divisors (135938288).

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

128044816 is a wasteful number, since it uses less digits than its factorization.

128044816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 128044816 is about 11315.6889317443. The cubic root of 128044816 is about 504.0272304092.

The spelling of 128044816 in words is "one hundred twenty-eight million, forty-four thousand, eight hundred sixteen".