12904306 has 24 divisors (see below), whose sum is σ = 20834604. Its totient is φ = 5991840.

The previous prime is 12904291. The next prime is 12904313. The reversal of 12904306 is 60340921.

It can be written as a sum of positive squares in 2 ways, for example, as 12895281 + 9025 = 3591^2 + 95^2 .

It is a super-2 number, since 2×12904306² = 333042226683272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43896 + ... + 44188.

Almost surely, 2^12904306 is an apocalyptic number.

12904306 is a deficient number, since it is larger than the sum of its proper divisors (7930298).

12904306 is a wasteful number, since it uses less digits than its factorization.

12904306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 12904306 is about 3592.2563939674. The cubic root of 12904306 is about 234.5551021247. Note that the first 3 decimals are identical.

The spelling of 12904306 in words is "twelve million, nine hundred four thousand, three hundred six".