128083580 has 12 divisors (see below), whose sum is σ = 268975560. Its totient is φ = 51233424.

The previous prime is 128083561. The next prime is 128083609. The reversal of 128083580 is 85380821.

It is a self number, because there is not a number n which added to its sum of digits gives 128083580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3202070 + ... + 3202109.

It is an arithmetic number, because the mean of its divisors is an integer number (22414630).

Almost surely, 2^128083580 is an apocalyptic number.

128083580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128083580 is an abundant number, since it is smaller than the sum of its proper divisors (140891980).

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

128083580 is a wasteful number, since it uses less digits than its factorization.

128083580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404188 (or 6404186 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 128083580 is about 11317.4016452541. The cubic root of 128083580 is about 504.0780879679.

The spelling of 128083580 in words is "one hundred twenty-eight million, eighty-three thousand, five hundred eighty".