12108388 has 12 divisors (see below), whose sum is σ = 21331072. Its totient is φ = 6013800.

The previous prime is 12108359. The next prime is 12108391. The reversal of 12108388 is 88380121.

It is a super-2 number, since 2×12108388² = 293226119917088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9420 + ... + 10627.

Almost surely, 2^12108388 is an apocalyptic number.

It is an amenable number.

12108388 is a deficient number, since it is larger than the sum of its proper divisors (9222684).

12108388 is a wasteful number, since it uses less digits than its factorization.

12108388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20202 (or 20200 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 12108388 is about 3479.7109075324. The cubic root of 12108388 is about 229.6300795857.

The spelling of 12108388 in words is "twelve million, one hundred eight thousand, three hundred eighty-eight".