128094980 has 24 divisors (see below), whose sum is σ = 289692312. Its totient is φ = 47296512.

The previous prime is 128094973. The next prime is 128094997. The reversal of 128094980 is 89490821.

It can be written as a sum of positive squares in 4 ways, for example, as 4129024 + 123965956 = 2032^2 + 11134^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246077 + ... + 246596.

It is an arithmetic number, because the mean of its divisors is an integer number (12070513).

Almost surely, 2^128094980 is an apocalyptic number.

128094980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128094980 is an abundant number, since it is smaller than the sum of its proper divisors (161597332).

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

128094980 is a wasteful number, since it uses less digits than its factorization.

128094980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492695 (or 492693 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 128094980 is about 11317.9052832227. The cubic root of 128094980 is about 504.0930425773.

The spelling of 128094980 in words is "one hundred twenty-eight million, ninety-four thousand, nine hundred eighty".