2818216 has 16 divisors (see below), whose sum is σ = 5427540. Its totient is φ = 1370880.

The previous prime is 2818181. The next prime is 2818219. The reversal of 2818216 is 6128182.

It can be written as a sum of positive squares in 2 ways, for example, as 2709316 + 108900 = 1646^2 + 330^2 .

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2818219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4465 + ... + 5056.

2^2818216 is an apocalyptic number.

It is an amenable number.

2818216 is a deficient number, since it is larger than the sum of its proper divisors (2609324).

2818216 is a wasteful number, since it uses less digits than its factorization.

2818216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9564 (or 9560 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 2818216 is about 1678.7543000690. The cubic root of 2818216 is about 141.2509656133.

The spelling of 2818216 in words is "two million, eight hundred eighteen thousand, two hundred sixteen".