13857472 has 14 divisors (see below), whose sum is σ = 27498548. Its totient is φ = 6928704.

The previous prime is 13857461. The next prime is 13857509. The reversal of 13857472 is 27475831.

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, 108198 + ... + 108325.

It is an arithmetic number, because the mean of its divisors is an integer number (1964182).

Almost surely, 2^13857472 is an apocalyptic number.

It is an amenable number.

13857472 is a deficient number, since it is larger than the sum of its proper divisors (13641076).

13857472 is an equidigital number, since it uses as much as digits as its factorization.

13857472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216535 (or 216525 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 13857472 is about 3722.5625582386. The cubic root of 13857472 is about 240.1935475756.

The spelling of 13857472 in words is "thirteen million, eight hundred fifty-seven thousand, four hundred seventy-two".