12109332 has 24 divisors (see below), whose sum is σ = 28364896. Its totient is φ = 4020768.

The previous prime is 12109319. The next prime is 12109343. The reversal of 12109332 is 23390121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12109299 and 12109308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1503 + ... + 5145.

Almost surely, 2^12109332 is an apocalyptic number.

12109332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12109332 is an abundant number, since it is smaller than the sum of its proper divisors (16255564).

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

12109332 is a wasteful number, since it uses less digits than its factorization.

12109332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927 (or 3925 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 12109332 is about 3479.8465483409. The cubic root of 12109332 is about 229.6360469411.

Adding to 12109332 its reverse (23390121), we get a palindrome (35499453).

The spelling of 12109332 in words is "twelve million, one hundred nine thousand, three hundred thirty-two".