12803520 has 56 divisors (see below), whose sum is σ = 40654224. Its totient is φ = 3414016.

The previous prime is 12803509. The next prime is 12803537. The reversal of 12803520 is 2530821.

12803520 is a modest number, since divided by 3520 gives 1280 as remainder.

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 7 ways as a sum of consecutive naturals, for example, 5709 + ... + 7628.

Almost surely, 2^12803520 is an apocalyptic number.

12803520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12803520 is an abundant number, since it is smaller than the sum of its proper divisors (27850704).

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

12803520 is a wasteful number, since it uses less digits than its factorization.

12803520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357 (or 13347 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12803520 is about 3578.2006651388. The cubic root of 12803520 is about 233.9428598885.

The spelling of 12803520 in words is "twelve million, eight hundred three thousand, five hundred twenty".