13362728 has 8 divisors (see below), whose sum is σ = 25055130. Its totient is φ = 6681360.

The previous prime is 13362709. The next prime is 13362763. The reversal of 13362728 is 82726331.

It is a happy number.

13362728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7496644 + 5866084 = 2738^2 + 2422^2 .

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 = 13362694 and 13362703.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835163 + ... + 835178.

Almost surely, 2^13362728 is an apocalyptic number.

It is an amenable number.

13362728 is a deficient number, since it is larger than the sum of its proper divisors (11692402).

13362728 is a wasteful number, since it uses less digits than its factorization.

13362728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670347 (or 1670343 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 13362728 is about 3655.5065312484. The cubic root of 13362728 is about 237.3003485560.

The spelling of 13362728 in words is "thirteen million, three hundred sixty-two thousand, seven hundred twenty-eight".