2189308 has 12 divisors (see below), whose sum is σ = 4179672. Its totient is φ = 995120.

The previous prime is 2189303. The next prime is 2189309. The reversal of 2189308 is 8039812.

It is a self number, because there is not a number n which added to its sum of digits gives 2189308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189303) 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 3 ways as a sum of consecutive naturals, for example, 24835 + ... + 24922.

It is an arithmetic number, because the mean of its divisors is an integer number (348306).

2^2189308 is an apocalyptic number.

It is an amenable number.

2189308 is a deficient number, since it is larger than the sum of its proper divisors (1990364).

2189308 is a wasteful number, since it uses less digits than its factorization.

2189308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49772 (or 49770 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2189308 is about 1479.6310350895. The cubic root of 2189308 is about 129.8481066189.

The spelling of 2189308 in words is "two million, one hundred eighty-nine thousand, three hundred eight".