12189624 has 16 divisors (see below), whose sum is σ = 30474120. Its totient is φ = 4063200.

The previous prime is 12189623. The next prime is 12189631. The reversal of 12189624 is 42698121.

It is a super-2 number, since 2×12189624² = 297173866522752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12189623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253927 + ... + 253974.

Almost surely, 2^12189624 is an apocalyptic number.

It is an amenable number.

12189624 is an abundant number, since it is smaller than the sum of its proper divisors (18284496).

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

12189624 is a wasteful number, since it uses less digits than its factorization.

12189624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507910 (or 507906 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 12189624 is about 3491.3642032879. The cubic root of 12189624 is about 230.1424700170.

The spelling of 12189624 in words is "twelve million, one hundred eighty-nine thousand, six hundred twenty-four".