128845080 has 640 divisors, whose sum is σ = 585446400. Its totient is φ = 24634368.

The previous prime is 128845051. The next prime is 128845081. The reversal of 128845080 is 80548821.

128845080 is a `hidden beast` number, since 128 + 8 + 450 + 80 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128845081) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 5601949 + ... + 5601971.

It is an arithmetic number, because the mean of its divisors is an integer number (914760).

Almost surely, 2^128845080 is an apocalyptic number.

128845080 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 128845080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292723200).

128845080 is an abundant number, since it is smaller than the sum of its proper divisors (456601320).

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

128845080 is a wasteful number, since it uses less digits than its factorization.

128845080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 72 counting only the distinct ones).

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

The square root of 128845080 is about 11350.9946700719. The cubic root of 128845080 is about 505.0750860480.

The spelling of 128845080 in words is "one hundred twenty-eight million, eight hundred forty-five thousand, eighty".