128108448 has 72 divisors (see below), whose sum is σ = 392343588. Its totient is φ = 39416832.

The previous prime is 128108429. The next prime is 128108483. The reversal of 128108448 is 844801821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 126967824 + 1140624 = 11268^2 + 1068^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

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 11 ways as a sum of consecutive naturals, for example, 13365 + ... + 20852.

Almost surely, 2^128108448 is an apocalyptic number.

128108448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

128108448 is an abundant number, since it is smaller than the sum of its proper divisors (264235140).

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

128108448 is a wasteful number, since it uses less digits than its factorization.

128108448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34246 (or 34235 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 128108448 is about 11318.5002540089. The cubic root of 128108448 is about 504.1107088620.

The spelling of 128108448 in words is "one hundred twenty-eight million, one hundred eight thousand, four hundred forty-eight".