13448728 has 8 divisors (see below), whose sum is σ = 25216380. Its totient is φ = 6724360.

The previous prime is 13448707. The next prime is 13448737. The reversal of 13448728 is 82784431.

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

It is a congruent number.

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, 840538 + ... + 840553.

Almost surely, 2^13448728 is an apocalyptic number.

It is an amenable number.

13448728 is a deficient number, since it is larger than the sum of its proper divisors (11767652).

13448728 is a wasteful number, since it uses less digits than its factorization.

13448728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681097 (or 1681093 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 13448728 is about 3667.2507413593. The cubic root of 13448728 is about 237.8083337899.

The spelling of 13448728 in words is "thirteen million, four hundred forty-eight thousand, seven hundred twenty-eight".