1333666 has 8 divisors (see below), whose sum is σ = 2013264. Its totient is φ = 662580.

The previous prime is 1333663. The next prime is 1333669. The reversal of 1333666 is 6663331.

It is an interprime number because it is at equal distance from previous prime (1333663) and next prime (1333669).

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

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1333663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1720 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (251658).

2^1333666 is an apocalyptic number.

1333666 is a deficient number, since it is larger than the sum of its proper divisors (679598).

1333666 is a wasteful number, since it uses less digits than its factorization.

1333666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256.

The product of its digits is 5832, while the sum is 28.

The square root of 1333666 is about 1154.8445782875. The cubic root of 1333666 is about 110.0733945447.

Adding to 1333666 its reverse (6663331), we get a palindrome (7996997).

It can be divided in two parts, 1333 and 666, that multiplied together give a triangular number (887778 = T₁₃₃₂).

The spelling of 1333666 in words is "one million, three hundred thirty-three thousand, six hundred sixty-six".