2219009 has 8 divisors (see below), whose sum is σ = 2409792. Its totient is φ = 2031120.

The previous prime is 2218999. The next prime is 2219023. The reversal of 2219009 is 9009122.

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

It is a de Polignac number, because none of the positive numbers 2^k-2219009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (301224).

2^2219009 is an apocalyptic number.

It is an amenable number.

2219009 is a deficient number, since it is larger than the sum of its proper divisors (190783).

2219009 is a wasteful number, since it uses less digits than its factorization.

2219009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 2219009 is about 1489.6338476283. The cubic root of 2219009 is about 130.4326610009.

The spelling of 2219009 in words is "two million, two hundred nineteen thousand, nine".