2862216 has 80 divisors (see below), whose sum is σ = 9176640. Its totient is φ = 816480.

The previous prime is 2862203. The next prime is 2862221. The reversal of 2862216 is 6122682.

2862216 is a `hidden beast` number, since 28 + 622 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2862216.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4221 + ... + 4851.

It is an arithmetic number, because the mean of its divisors is an integer number (114708).

2^2862216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2862216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4588320).

2862216 is an abundant number, since it is smaller than the sum of its proper divisors (6314424).

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

2862216 is a wasteful number, since it uses less digits than its factorization.

2862216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 643 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2862216 is about 1691.8084998013. The cubic root of 2862216 is about 141.9822764364.

Adding to 2862216 its reverse (6122682), we get a palindrome (8984898).

The spelling of 2862216 in words is "two million, eight hundred sixty-two thousand, two hundred sixteen".