14640660 has 72 divisors (see below), whose sum is σ = 44772000. Its totient is φ = 3872448.

The previous prime is 14640653. The next prime is 14640677. The reversal of 14640660 is 6604641.

14640660 is a `hidden beast` number, since 14 + 640 + 6 + 6 + 0 = 666.

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 in 23 ways as a sum of consecutive naturals, for example, 29091 + ... + 29589.

Almost surely, 2^14640660 is an apocalyptic number.

14640660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14640660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22386000).

14640660 is an abundant number, since it is smaller than the sum of its proper divisors (30131340).

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

14640660 is a wasteful number, since it uses less digits than its factorization.

14640660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 14640660 is about 3826.3115398514. The cubic root of 14640660 is about 244.6359162509.

The spelling of 14640660 in words is "fourteen million, six hundred forty thousand, six hundred sixty".