128200218 has 16 divisors (see below), whose sum is σ = 256590720. Its totient is φ = 42701696.

The previous prime is 128200211. The next prime is 128200249. The reversal of 128200218 is 812002821.

It is not an unprimeable number, because it can be changed into a prime (128200211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738 + ... + 16106.

It is an arithmetic number, because the mean of its divisors is an integer number (16036920).

Almost surely, 2^128200218 is an apocalyptic number.

128200218 is an abundant number, since it is smaller than the sum of its proper divisors (128390502).

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

128200218 is a wasteful number, since it uses less digits than its factorization.

128200218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15861.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 128200218 is about 11322.5535105823. The cubic root of 128200218 is about 504.2310527276.

The spelling of 128200218 in words is "one hundred twenty-eight million, two hundred thousand, two hundred eighteen".