220086188 has 24 divisors (see below), whose sum is σ = 440600832. Its totient is φ = 94230864.

The previous prime is 220086161. The next prime is 220086221. The reversal of 220086188 is 881680022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31031 + ... + 37457.

It is an arithmetic number, because the mean of its divisors is an integer number (18358368).

Almost surely, 2^220086188 is an apocalyptic number.

220086188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

220086188 is an abundant number, since it is smaller than the sum of its proper divisors (220514644).

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

220086188 is a wasteful number, since it uses less digits than its factorization.

220086188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661 (or 7659 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 220086188 is about 14835.3020865771. The cubic root of 220086188 is about 603.7598968182.

It can be divided in two parts, 2200 and 86188, that added together give a palindrome (88388).

The spelling of 220086188 in words is "two hundred twenty million, eighty-six thousand, one hundred eighty-eight".