13303728 has 30 divisors (see below), whose sum is σ = 37232364. Its totient is φ = 4434528.

The previous prime is 13303711. The next prime is 13303751. The reversal of 13303728 is 82730331.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46050 + ... + 46337.

Almost surely, 2^13303728 is an apocalyptic number.

13303728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13303728 is an abundant number, since it is smaller than the sum of its proper divisors (23928636).

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

13303728 is a wasteful number, since it uses less digits than its factorization.

13303728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92401 (or 92392 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 13303728 is about 3647.4275866698. The cubic root of 13303728 is about 236.9505852219.

The spelling of 13303728 in words is "thirteen million, three hundred three thousand, seven hundred twenty-eight".