12090388 has 12 divisors (see below), whose sum is σ = 21189952. Its totient is φ = 6036120.

The previous prime is 12090343. The next prime is 12090409. The reversal of 12090388 is 88309021.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 1381 + ... + 5107.

Almost surely, 2^12090388 is an apocalyptic number.

It is an amenable number.

12090388 is a deficient number, since it is larger than the sum of its proper divisors (9099564).

12090388 is a wasteful number, since it uses less digits than its factorization.

12090388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542 (or 4540 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12090388 is about 3477.1235238340. The cubic root of 12090388 is about 229.5162358795.

The spelling of 12090388 in words is "twelve million, ninety thousand, three hundred eighty-eight".