2082218 has 4 divisors (see below), whose sum is σ = 3123330. Its totient is φ = 1041108.

The previous prime is 2082193. The next prime is 2082247. The reversal of 2082218 is 8122802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8122802 = 2 ⋅4061401.

It can be written as a sum of positive squares in only one way, i.e., 1530169 + 552049 = 1237^2 + 743^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2082193 and 2082202.

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 as a sum of consecutive naturals, namely, 520553 + ... + 520556.

2^2082218 is an apocalyptic number.

2082218 is a deficient number, since it is larger than the sum of its proper divisors (1041112).

2082218 is a wasteful number, since it uses less digits than its factorization.

2082218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041111.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 2082218 is about 1442.9892584493. The cubic root of 2082218 is about 127.6954429184.

The spelling of 2082218 in words is "two million, eighty-two thousand, two hundred eighteen".