128485008 has 120 divisors (see below), whose sum is σ = 380407200. Its totient is φ = 41509440.

The previous prime is 128485003. The next prime is 128485033. The reversal of 128485008 is 800584821.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (128485001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1809613 + ... + 1809683.

It is an arithmetic number, because the mean of its divisors is an integer number (3170060).

Almost surely, 2^128485008 is an apocalyptic number.

128485008 is a gapful number since it is divisible by the number (18) 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 128485008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190203600).

128485008 is an abundant number, since it is smaller than the sum of its proper divisors (251922192).

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

128485008 is an equidigital number, since it uses as much as digits as its factorization.

128485008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 128485008 is about 11335.1227606939. The cubic root of 128485008 is about 504.6041507913.

The spelling of 128485008 in words is "one hundred twenty-eight million, four hundred eighty-five thousand, eight".