12909204 has 72 divisors (see below), whose sum is σ = 40692288. Its totient is φ = 3352320.

The previous prime is 12909179. The next prime is 12909217. The reversal of 12909204 is 40290921.

12909204 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 444 + ... + 5100.

Almost surely, 2^12909204 is an apocalyptic number.

12909204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12909204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20346144).

12909204 is an abundant number, since it is smaller than the sum of its proper divisors (27783084).

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

12909204 is a wasteful number, since it uses less digits than its factorization.

12909204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685 (or 4680 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12909204 is about 3592.9380734992. The cubic root of 12909204 is about 234.5847745345.

The spelling of 12909204 in words is "twelve million, nine hundred nine thousand, two hundred four".