128829180 has 48 divisors (see below), whose sum is σ = 372363264. Its totient is φ = 33245760.

The previous prime is 128829163. The next prime is 128829193. The reversal of 128829180 is 81928821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32772 + ... + 36491.

It is an arithmetic number, because the mean of its divisors is an integer number (7757568).

Almost surely, 2^128829180 is an apocalyptic number.

128829180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128829180 is an abundant number, since it is smaller than the sum of its proper divisors (243534084).

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

128829180 is a wasteful number, since it uses less digits than its factorization.

128829180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69306 (or 69304 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 128829180 is about 11350.2942693130. The cubic root of 128829180 is about 505.0543090957.

The spelling of 128829180 in words is "one hundred twenty-eight million, eight hundred twenty-nine thousand, one hundred eighty".