2162266 has 4 divisors (see below), whose sum is σ = 3243402. Its totient is φ = 1081132.

The previous prime is 2162263. The next prime is 2162273. The reversal of 2162266 is 6622612.

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., 2059225 + 103041 = 1435^2 + 321^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2162266.

It is not an unprimeable number, because it can be changed into a prime (2162263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540565 + ... + 540568.

2^2162266 is an apocalyptic number.

2162266 is a deficient number, since it is larger than the sum of its proper divisors (1081136).

2162266 is a wasteful number, since it uses less digits than its factorization.

2162266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081135.

The product of its digits is 1728, while the sum is 25.

The square root of 2162266 is about 1470.4645524459. The cubic root of 2162266 is about 129.3112688355.

Adding to 2162266 its reverse (6622612), we get a palindrome (8784878).

The spelling of 2162266 in words is "two million, one hundred sixty-two thousand, two hundred sixty-six".