2182066 has 4 divisors (see below), whose sum is σ = 3273102. Its totient is φ = 1091032.

The previous prime is 2182057. The next prime is 2182073. The reversal of 2182066 is 6602812.

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

It can be written as a sum of positive squares in only one way, i.e., 2163841 + 18225 = 1471^2 + 135^2 .

It is a super-2 number, since 2×2182066² = 9522824056712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2182066.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545515 + ... + 545518.

2^2182066 is an apocalyptic number.

2182066 is a deficient number, since it is larger than the sum of its proper divisors (1091036).

2182066 is a wasteful number, since it uses less digits than its factorization.

2182066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091035.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2182066 is about 1477.1817762212. The cubic root of 2182066 is about 129.7047738446.

Adding to 2182066 its reverse (6602812), we get a palindrome (8784878).

The spelling of 2182066 in words is "two million, one hundred eighty-two thousand, sixty-six".