14640664 has 8 divisors (see below), whose sum is σ = 27451260. Its totient is φ = 7320328.

The previous prime is 14640653. The next prime is 14640677. The reversal of 14640664 is 46604641.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915034 + ... + 915049.

Almost surely, 2^14640664 is an apocalyptic number.

It is an amenable number.

14640664 is a deficient number, since it is larger than the sum of its proper divisors (12810596).

14640664 is a wasteful number, since it uses less digits than its factorization.

14640664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830089 (or 1830085 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 14640664 is about 3826.3120625480. The cubic root of 14640664 is about 244.6359385301.

The spelling of 14640664 in words is "fourteen million, six hundred forty thousand, six hundred sixty-four".