12788236 has 24 divisors (see below), whose sum is σ = 23327136. Its totient is φ = 6128640.

The previous prime is 12788227. The next prime is 12788239. The reversal of 12788236 is 63288721.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 12788195 and 12788204.

It is not an unprimeable number, because it can be changed into a prime (12788239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9900 + ... + 11116.

It is an arithmetic number, because the mean of its divisors is an integer number (971964).

Almost surely, 2^12788236 is an apocalyptic number.

It is an amenable number.

12788236 is a deficient number, since it is larger than the sum of its proper divisors (10538900).

12788236 is a wasteful number, since it uses less digits than its factorization.

12788236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1327 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 12788236 is about 3576.0643170950. The cubic root of 12788236 is about 233.8497342902.

The spelling of 12788236 in words is "twelve million, seven hundred eighty-eight thousand, two hundred thirty-six".