1200666 has 16 divisors (see below), whose sum is σ = 2427264. Its totient is φ = 395904.

The previous prime is 1200643. The next prime is 1200673. The reversal of 1200666 is 6660021.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450 + ... + 1613.

It is an arithmetic number, because the mean of its divisors is an integer number (151704).

2^1200666 is an apocalyptic number.

1200666 is an abundant number, since it is smaller than the sum of its proper divisors (1226598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200666 is a wasteful number, since it uses less digits than its factorization.

1200666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1200666 is about 1095.7490588634. The cubic root of 1200666 is about 106.2855124660.

Adding to 1200666 its reverse (6660021), we get a palindrome (7860687).

The spelling of 1200666 in words is "one million, two hundred thousand, six hundred sixty-six".