2219889 has 16 divisors (see below), whose sum is σ = 3475328. Its totient is φ = 1233792.

The previous prime is 2219887. The next prime is 2219923. The reversal of 2219889 is 9889122.

It is not a de Polignac number, because 2219889 - 2¹ = 2219887 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219881) 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 15 ways as a sum of consecutive naturals, for example, 652 + ... + 2205.

It is an arithmetic number, because the mean of its divisors is an integer number (217208).

2^2219889 is an apocalyptic number.

It is an amenable number.

2219889 is a deficient number, since it is larger than the sum of its proper divisors (1255439).

2219889 is a wasteful number, since it uses less digits than its factorization.

2219889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904.

The product of its digits is 20736, while the sum is 39.

The square root of 2219889 is about 1489.9291929484. The cubic root of 2219889 is about 130.4499007646.

The spelling of 2219889 in words is "two million, two hundred nineteen thousand, eight hundred eighty-nine".