2182216 has 8 divisors (see below), whose sum is σ = 4091670. Its totient is φ = 1091104.

The previous prime is 2182211. The next prime is 2182249. The reversal of 2182216 is 6122812.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 21316 = 1470^2 + 146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2182211) 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 as a sum of consecutive naturals, namely, 136381 + ... + 136396.

2^2182216 is an apocalyptic number.

It is an amenable number.

2182216 is a deficient number, since it is larger than the sum of its proper divisors (1909454).

2182216 is a wasteful number, since it uses less digits than its factorization.

2182216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272783 (or 272779 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 2182216 is about 1477.2325477053. The cubic root of 2182216 is about 129.7077458400.

The spelling of 2182216 in words is "two million, one hundred eighty-two thousand, two hundred sixteen".