13183728 has 20 divisors (see below), whose sum is σ = 34058088. Its totient is φ = 4394560.

The previous prime is 13183717. The next prime is 13183763. The reversal of 13183728 is 82738131.

It is a congruent number.

It is an unprimeable number.

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, 137283 + ... + 137378.

Almost surely, 2^13183728 is an apocalyptic number.

It is an amenable number.

13183728 is an abundant number, since it is smaller than the sum of its proper divisors (20874360).

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

13183728 is a wasteful number, since it uses less digits than its factorization.

13183728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274672 (or 274666 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 13183728 is about 3630.9403740629. The cubic root of 13183728 is about 236.2359987223.

The spelling of 13183728 in words is "thirteen million, one hundred eighty-three thousand, seven hundred twenty-eight".