12066388 has 12 divisors (see below), whose sum is σ = 21205492. Its totient is φ = 6007680.

The previous prime is 12066377. The next prime is 12066419. The reversal of 12066388 is 88366021.

It can be written as a sum of positive squares in 2 ways, for example, as 10355524 + 1710864 = 3218^2 + 1308^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5295 + ... + 7222.

Almost surely, 2^12066388 is an apocalyptic number.

It is an amenable number.

12066388 is a deficient number, since it is larger than the sum of its proper divisors (9139104).

12066388 is a wasteful number, since it uses less digits than its factorization.

12066388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12762 (or 12760 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 12066388 is about 3473.6706809944. The cubic root of 12066388 is about 229.3642683692.

The spelling of 12066388 in words is "twelve million, sixty-six thousand, three hundred eighty-eight".