13857328 has 10 divisors (see below), whose sum is σ = 26848604. Its totient is φ = 6928656.

The previous prime is 13857317. The next prime is 13857343. The reversal of 13857328 is 82375831.

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 as a sum of consecutive naturals, namely, 433026 + ... + 433057.

Almost surely, 2^13857328 is an apocalyptic number.

It is an amenable number.

13857328 is a deficient number, since it is larger than the sum of its proper divisors (12991276).

13857328 is an equidigital number, since it uses as much as digits as its factorization.

13857328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866091 (or 866085 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 13857328 is about 3722.5432166732. The cubic root of 13857328 is about 240.1927155819.

It can be divided in two parts, 138573 and 28, that added together give a triangular number (138601 = T₅₂₆).

The spelling of 13857328 in words is "thirteen million, eight hundred fifty-seven thousand, three hundred twenty-eight".