128103880 has 64 divisors (see below), whose sum is σ = 299376000. Its totient is φ = 49297920.

The previous prime is 128103869. The next prime is 128103883. The reversal of 128103880 is 88301821.

It is not an unprimeable number, because it can be changed into a prime (128103883) 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, 121596 + ... + 122644.

It is an arithmetic number, because the mean of its divisors is an integer number (4677750).

Almost surely, 2^128103880 is an apocalyptic number.

128103880 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 128103880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149688000).

128103880 is an abundant number, since it is smaller than the sum of its proper divisors (171272120).

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

128103880 is a wasteful number, since it uses less digits than its factorization.

128103880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 128103880 is about 11318.2984586907. The cubic root of 128103880 is about 504.1047170503.

The spelling of 128103880 in words is "one hundred twenty-eight million, one hundred three thousand, eight hundred eighty".