2188834189 has 8 divisors (see below), whose sum is σ = 2298108960. Its totient is φ = 2081812656.

The previous prime is 2188834103. The next prime is 2188834211. The reversal of 2188834189 is 9814388812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2188834189 - 2¹¹ = 2188832141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188831189) by changing a digit.

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, 561319 + ... + 565204.

It is an arithmetic number, because the mean of its divisors is an integer number (287263620).

Almost surely, 2^2188834189 is an apocalyptic number.

2188834189 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2188834189 is a deficient number, since it is larger than the sum of its proper divisors (109274771).

2188834189 is a wasteful number, since it uses less digits than its factorization.

2188834189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126619.

The product of its digits is 884736, while the sum is 52.

The square root of 2188834189 is about 46784.9782408841. The cubic root of 2188834189 is about 1298.3873868167.

The spelling of 2188834189 in words is "two billion, one hundred eighty-eight million, eight hundred thirty-four thousand, one hundred eighty-nine".