12728334 has 8 divisors (see below), whose sum is σ = 25456680. Its totient is φ = 4242776.

The previous prime is 12728311. The next prime is 12728341. The reversal of 12728334 is 43382721.

It is a sphenic number, since it is the product of 3 distinct primes.

12728334 is an admirable number.

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, 1060689 + ... + 1060700.

It is an arithmetic number, because the mean of its divisors is an integer number (3182085).

Almost surely, 2^12728334 is an apocalyptic number.

12728334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12728334 is a wasteful number, since it uses less digits than its factorization.

12728334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121394.

The product of its digits is 8064, while the sum is 30.

The square root of 12728334 is about 3567.6790774956. The cubic root of 12728334 is about 233.4840337136.

The spelling of 12728334 in words is "twelve million, seven hundred twenty-eight thousand, three hundred thirty-four".