128348860 has 48 divisors (see below), whose sum is σ = 277879392. Its totient is φ = 49766400.

The previous prime is 128348839. The next prime is 128348863. The reversal of 128348860 is 68843821.

It is a super-3 number, since 3×128348860³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128348863) 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, 157855 + ... + 158665.

It is an arithmetic number, because the mean of its divisors is an integer number (5789154).

Almost surely, 2^128348860 is an apocalyptic number.

128348860 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 128348860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138939696).

128348860 is an abundant number, since it is smaller than the sum of its proper divisors (149530532).

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

128348860 is a wasteful number, since it uses less digits than its factorization.

128348860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 128348860 is about 11329.1155877235. The cubic root of 128348860 is about 504.4258546945.

The spelling of 128348860 in words is "one hundred twenty-eight million, three hundred forty-eight thousand, eight hundred sixty".