2218019 has 4 divisors (see below), whose sum is σ = 2289600. Its totient is φ = 2146440.

The previous prime is 2218001. The next prime is 2218037. The reversal of 2218019 is 9108122.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2218001) and next prime (2218037).

It is not a de Polignac number, because 2218019 - 2¹² = 2213923 is a prime.

It is a super-2 number, since 2×2218019² = 9839216568722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2217985 and 2218003.

It is not an unprimeable number, because it can be changed into a prime (2218219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35744 + ... + 35805.

It is an arithmetic number, because the mean of its divisors is an integer number (572400).

2^2218019 is an apocalyptic number.

2218019 is a deficient number, since it is larger than the sum of its proper divisors (71581).

2218019 is an equidigital number, since it uses as much as digits as its factorization.

2218019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71580.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2218019 is about 1489.3015141334. The cubic root of 2218019 is about 130.4132608179.

The spelling of 2218019 in words is "two million, two hundred eighteen thousand, nineteen".