2196668 has 6 divisors (see below), whose sum is σ = 3844176. Its totient is φ = 1098332.

The previous prime is 2196659. The next prime is 2196673. The reversal of 2196668 is 8666912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274580 + ... + 274587.

It is an arithmetic number, because the mean of its divisors is an integer number (640696).

2^2196668 is an apocalyptic number.

It is an amenable number.

2196668 is a deficient number, since it is larger than the sum of its proper divisors (1647508).

2196668 is a wasteful number, since it uses less digits than its factorization.

2196668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549171 (or 549169 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 2196668 is about 1482.1160548351. The cubic root of 2196668 is about 129.9934513467.

The spelling of 2196668 in words is "two million, one hundred ninety-six thousand, six hundred sixty-eight".