13472728 has 8 divisors (see below), whose sum is σ = 25261380. Its totient is φ = 6736360.

The previous prime is 13472707. The next prime is 13472737. The reversal of 13472728 is 82727431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 13472693 and 13472702.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 842038 + ... + 842053.

Almost surely, 2^13472728 is an apocalyptic number.

It is an amenable number.

13472728 is a deficient number, since it is larger than the sum of its proper divisors (11788652).

13472728 is a wasteful number, since it uses less digits than its factorization.

13472728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684097 (or 1684093 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 13472728 is about 3670.5214888351. The cubic root of 13472728 is about 237.9497104394.

The spelling of 13472728 in words is "thirteen million, four hundred seventy-two thousand, seven hundred twenty-eight".