14688540 has 60 divisors (see below), whose sum is σ = 46083576. Its totient is φ = 3916512.

The previous prime is 14688533. The next prime is 14688571. The reversal of 14688540 is 4588641.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 14688495 and 14688504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2914 + ... + 6153.

Almost surely, 2^14688540 is an apocalyptic number.

14688540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14688540 is an abundant number, since it is smaller than the sum of its proper divisors (31395036).

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

14688540 is a wasteful number, since it uses less digits than its factorization.

14688540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088 (or 9077 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 14688540 is about 3832.5631110264. The cubic root of 14688540 is about 244.9023072952.

The spelling of 14688540 in words is "fourteen million, six hundred eighty-eight thousand, five hundred forty".