12904032 has 24 divisors (see below), whose sum is σ = 33873336. Its totient is φ = 4301312.

The previous prime is 12904027. The next prime is 12904049. The reversal of 12904032 is 23040921.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67113 + ... + 67304.

It is an arithmetic number, because the mean of its divisors is an integer number (1411389).

Almost surely, 2^12904032 is an apocalyptic number.

12904032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12904032 is an abundant number, since it is smaller than the sum of its proper divisors (20969304).

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

12904032 is a wasteful number, since it uses less digits than its factorization.

12904032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134430 (or 134422 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12904032 is about 3592.2182561754. The cubic root of 12904032 is about 234.5534419927.

Adding to 12904032 its reverse (23040921), we get a palindrome (35944953).

The spelling of 12904032 in words is "twelve million, nine hundred four thousand, thirty-two".