12188072 has 16 divisors (see below), whose sum is σ = 24610740. Its totient is φ = 5625216.

The previous prime is 12188069. The next prime is 12188083. The reversal of 12188072 is 27088121.

It can be written as a sum of positive squares in 2 ways, for example, as 9647236 + 2540836 = 3106^2 + 1594^2 .

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, 58493 + ... + 58700.

Almost surely, 2^12188072 is an apocalyptic number.

It is an amenable number.

12188072 is an abundant number, since it is smaller than the sum of its proper divisors (12422668).

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

12188072 is a wasteful number, since it uses less digits than its factorization.

12188072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117212 (or 117208 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 12188072 is about 3491.1419335226. The cubic root of 12188072 is about 230.1327022485.

The spelling of 12188072 in words is "twelve million, one hundred eighty-eight thousand, seventy-two".