12716388 has 36 divisors (see below), whose sum is σ = 32694480. Its totient is φ = 4166256.

The previous prime is 12716387. The next prime is 12716411. The reversal of 12716388 is 88361721.

12716388 is a `hidden beast` number, since 1 + 271 + 6 + 388 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (12716387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 870 + ... + 5117.

It is an arithmetic number, because the mean of its divisors is an integer number (908180).

Almost surely, 2^12716388 is an apocalyptic number.

12716388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12716388 is an abundant number, since it is smaller than the sum of its proper divisors (19978092).

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

12716388 is a wasteful number, since it uses less digits than its factorization.

12716388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056 (or 6051 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 12716388 is about 3566.0044868171. The cubic root of 12716388 is about 233.4109664578.

The spelling of 12716388 in words is "twelve million, seven hundred sixteen thousand, three hundred eighty-eight".