12921246 has 24 divisors (see below), whose sum is σ = 30150120. Its totient is φ = 3975696.

The previous prime is 12921217. The next prime is 12921263. The reversal of 12921246 is 64212921.

12921246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27376 + ... + 27843.

It is an arithmetic number, because the mean of its divisors is an integer number (1256255).

Almost surely, 2^12921246 is an apocalyptic number.

12921246 is an abundant number, since it is smaller than the sum of its proper divisors (17228874).

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

12921246 is a wasteful number, since it uses less digits than its factorization.

12921246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55240 (or 55237 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 12921246 is about 3594.6134701801. The cubic root of 12921246 is about 234.6576938754.

The spelling of 12921246 in words is "twelve million, nine hundred twenty-one thousand, two hundred forty-six".