128200680 has 48 divisors (see below), whose sum is σ = 416653380. Its totient is φ = 34186752.

The previous prime is 128200679. The next prime is 128200703. The reversal of 128200680 is 86002821.

It can be written as a sum of positive squares in 2 ways, for example, as 128187684 + 12996 = 11322^2 + 114^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177697 + ... + 178416.

Almost surely, 2^128200680 is an apocalyptic number.

128200680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128200680 is an abundant number, since it is smaller than the sum of its proper divisors (288452700).

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

128200680 is a wasteful number, since it uses less digits than its factorization.

128200680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356130 (or 356123 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 128200680 is about 11322.5739123222. The cubic root of 128200680 is about 504.2316584325.

The spelling of 128200680 in words is "one hundred twenty-eight million, two hundred thousand, six hundred eighty".