12803530 has 32 divisors (see below), whose sum is σ = 24595200. Its totient is φ = 4784832.

The previous prime is 12803509. The next prime is 12803537. The reversal of 12803530 is 3530821.

It is not an unprimeable number, because it can be changed into a prime (12803537) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14584 + ... + 15436.

It is an arithmetic number, because the mean of its divisors is an integer number (768600).

Almost surely, 2^12803530 is an apocalyptic number.

12803530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12803530 is a deficient number, since it is larger than the sum of its proper divisors (11791670).

12803530 is a wasteful number, since it uses less digits than its factorization.

12803530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12803530 is about 3578.2020624889. The cubic root of 12803530 is about 233.9429207943.

The spelling of 12803530 in words is "twelve million, eight hundred three thousand, five hundred thirty".