14640666 has 8 divisors (see below), whose sum is σ = 29281344. Its totient is φ = 4880220.

The previous prime is 14640653. The next prime is 14640677. The reversal of 14640666 is 66604641.

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

14640666 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1220050 + ... + 1220061.

It is an arithmetic number, because the mean of its divisors is an integer number (3660168).

Almost surely, 2^14640666 is an apocalyptic number.

14640666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

14640666 is a wasteful number, since it uses less digits than its factorization.

14640666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440116.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 14640666 is about 3826.3123238962. The cubic root of 14640666 is about 244.6359496696.

The spelling of 14640666 in words is "fourteen million, six hundred forty thousand, six hundred sixty-six".