128048880 has 80 divisors (see below), whose sum is σ = 403724160. Its totient is φ = 33563904.

The previous prime is 128048861. The next prime is 128048887. The reversal of 128048880 is 88840821.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128048887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9639 + ... + 18681.

It is an arithmetic number, because the mean of its divisors is an integer number (5046552).

Almost surely, 2^128048880 is an apocalyptic number.

128048880 is a gapful number since it is divisible by the number (10) 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 128048880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201862080).

128048880 is an abundant number, since it is smaller than the sum of its proper divisors (275675280).

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

128048880 is a wasteful number, since it uses less digits than its factorization.

128048880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9118 (or 9112 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 39.

The square root of 128048880 is about 11315.8685040080. The cubic root of 128048880 is about 504.0325627739.

The spelling of 128048880 in words is "one hundred twenty-eight million, forty-eight thousand, eight hundred eighty".