2162218 has 8 divisors (see below), whose sum is σ = 3258180. Its totient is φ = 1076160.

The previous prime is 2162203. The next prime is 2162221. The reversal of 2162218 is 8122612.

2162218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1996569 + 165649 = 1413^2 + 407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903 + ... + 2818.

2^2162218 is an apocalyptic number.

2162218 is a deficient number, since it is larger than the sum of its proper divisors (1095962).

2162218 is a wasteful number, since it uses less digits than its factorization.

2162218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952.

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

The square root of 2162218 is about 1470.4482309826. The cubic root of 2162218 is about 129.3103119710.

The spelling of 2162218 in words is "two million, one hundred sixty-two thousand, two hundred eighteen".