12788124 has 12 divisors (see below), whose sum is σ = 29838984. Its totient is φ = 4262704.

The previous prime is 12788123. The next prime is 12788129. The reversal of 12788124 is 42188721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12788124² = 327072230878752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12788123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532827 + ... + 532850.

It is an arithmetic number, because the mean of its divisors is an integer number (2486582).

Almost surely, 2^12788124 is an apocalyptic number.

It is an amenable number.

12788124 is an abundant number, since it is smaller than the sum of its proper divisors (17050860).

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

12788124 is a wasteful number, since it uses less digits than its factorization.

12788124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065684 (or 1065682 counting only the distinct ones).

The product of its digits is 7168, while the sum is 33.

The square root of 12788124 is about 3576.0486573871. The cubic root of 12788124 is about 233.8490515991.

The spelling of 12788124 in words is "twelve million, seven hundred eighty-eight thousand, one hundred twenty-four".