1330666 has 8 divisors (see below), whose sum is σ = 2003904. Its totient is φ = 662700.

The previous prime is 1330649. The next prime is 1330691. The reversal of 1330666 is 6660331.

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

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 1330666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610 + ... + 1741.

It is an arithmetic number, because the mean of its divisors is an integer number (250488).

2^1330666 is an apocalyptic number.

1330666 is a deficient number, since it is larger than the sum of its proper divisors (673238).

1330666 is a wasteful number, since it uses less digits than its factorization.

1330666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 1330666 is about 1153.5449709483. The cubic root of 1330666 is about 109.9907981283.

Adding to 1330666 its reverse (6660331), we get a palindrome (7990997).

The spelling of 1330666 in words is "one million, three hundred thirty thousand, six hundred sixty-six".