14642666 has 8 divisors (see below), whose sum is σ = 21980484. Its totient is φ = 7315840.

The previous prime is 14642659. The next prime is 14642669. The reversal of 14642666 is 66624641.

It can be written as a sum of positive squares in 2 ways, for example, as 12752041 + 1890625 = 3571^2 + 1375^2 .

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

It is not an unprimeable number, because it can be changed into a prime (14642669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2936 + ... + 6156.

Almost surely, 2^14642666 is an apocalyptic number.

14642666 is a deficient number, since it is larger than the sum of its proper divisors (7337818).

14642666 is a wasteful number, since it uses less digits than its factorization.

14642666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496.

The product of its digits is 41472, while the sum is 35.

The square root of 14642666 is about 3826.5736632136. The cubic root of 14642666 is about 244.6470887262.

The spelling of 14642666 in words is "fourteen million, six hundred forty-two thousand, six hundred sixty-six".