12905408 has 28 divisors (see below), whose sum is σ = 26959560. Its totient is φ = 6112512.

The previous prime is 12905407. The next prime is 12905411. The reversal of 12905408 is 80450921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12905407) by changing a digit.

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, 4091 + ... + 6522.

Almost surely, 2^12905408 is an apocalyptic number.

It is an amenable number.

12905408 is an abundant number, since it is smaller than the sum of its proper divisors (14054152).

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

12905408 is a wasteful number, since it uses less digits than its factorization.

12905408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10644 (or 10634 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12905408 is about 3592.4097761809. The cubic root of 12905408 is about 234.5617787685.

The spelling of 12905408 in words is "twelve million, nine hundred five thousand, four hundred eight".