2219988 has 12 divisors (see below), whose sum is σ = 5180000. Its totient is φ = 739992.

The previous prime is 2219977. The next prime is 2219999. The reversal of 2219988 is 8899122.

2219988 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2219977) and next prime (2219999).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 92488 + ... + 92511.

2^2219988 is an apocalyptic number.

It is an amenable number.

2219988 is an abundant number, since it is smaller than the sum of its proper divisors (2960012).

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

2219988 is a wasteful number, since it uses less digits than its factorization.

2219988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185006 (or 185004 counting only the distinct ones).

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

The square root of 2219988 is about 1489.9624156334. The cubic root of 2219988 is about 130.4518399528.

The spelling of 2219988 in words is "two million, two hundred nineteen thousand, nine hundred eighty-eight".