2206918 has 8 divisors (see below), whose sum is σ = 3783312. Its totient is φ = 945816.

The previous prime is 2206909. The next prime is 2206927. The reversal of 2206918 is 8196022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2206909) and next prime (2206927).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78805 + ... + 78832.

It is an arithmetic number, because the mean of its divisors is an integer number (472914).

2^2206918 is an apocalyptic number.

2206918 is a deficient number, since it is larger than the sum of its proper divisors (1576394).

2206918 is a wasteful number, since it uses less digits than its factorization.

2206918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157646.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2206918 is about 1485.5699243051. The cubic root of 2206918 is about 130.1953276709.

The spelling of 2206918 in words is "two million, two hundred six thousand, nine hundred eighteen".