128799180 has 96 divisors (see below), whose sum is σ = 403865280. Its totient is φ = 34076160.

The previous prime is 128799173. The next prime is 128799193. The reversal of 128799180 is 81997821.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73110 + ... + 74850.

It is an arithmetic number, because the mean of its divisors is an integer number (4206930).

Almost surely, 2^128799180 is an apocalyptic number.

128799180 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 128799180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201932640).

128799180 is an abundant number, since it is smaller than the sum of its proper divisors (275066100).

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

128799180 is a wasteful number, since it uses less digits than its factorization.

128799180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896 (or 1888 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 128799180 is about 11348.9726407283. The cubic root of 128799180 is about 505.0151026428.

The spelling of 128799180 in words is "one hundred twenty-eight million, seven hundred ninety-nine thousand, one hundred eighty".