2196218 has 4 divisors (see below), whose sum is σ = 3294330. Its totient is φ = 1098108.

The previous prime is 2196197. The next prime is 2196221. The reversal of 2196218 is 8126912.

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., 1261129 + 935089 = 1123^2 + 967^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549053 + ... + 549056.

2^2196218 is an apocalyptic number.

2196218 is a deficient number, since it is larger than the sum of its proper divisors (1098112).

2196218 is a wasteful number, since it uses less digits than its factorization.

2196218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098111.

The product of its digits is 1728, while the sum is 29.

The square root of 2196218 is about 1481.9642370854. The cubic root of 2196218 is about 129.9845741065.

The spelling of 2196218 in words is "two million, one hundred ninety-six thousand, two hundred eighteen".