2200666 has 16 divisors (see below), whose sum is σ = 3624264. Its totient is φ = 995904.

The previous prime is 2200661. The next prime is 2200673. The reversal of 2200666 is 6660022.

It can be written as a sum of positive squares in 4 ways, for example, as 1428025 + 772641 = 1195^2 + 879^2 .

It is an Ulam number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2200661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580 + ... + 2176.

2^2200666 is an apocalyptic number.

2200666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2200666 is a deficient number, since it is larger than the sum of its proper divisors (1423598).

2200666 is a wasteful number, since it uses less digits than its factorization.

2200666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2200666 is about 1483.4641889847. The cubic root of 2200666 is about 130.0722675111.

Adding to 2200666 its reverse (6660022), we get a palindrome (8860688).

The spelling of 2200666 in words is "two million, two hundred thousand, six hundred sixty-six".