13478628 has 12 divisors (see below), whose sum is σ = 31450160. Its totient is φ = 4492872.

The previous prime is 13478623. The next prime is 13478639. The reversal of 13478628 is 82687431.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13478623) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 561598 + ... + 561621.

Almost surely, 2^13478628 is an apocalyptic number.

It is an amenable number.

13478628 is an abundant number, since it is smaller than the sum of its proper divisors (17971532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13478628 is a wasteful number, since it uses less digits than its factorization.

13478628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123226 (or 1123224 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 13478628 is about 3671.3251013769. The cubic root of 13478628 is about 237.9844398179.

The spelling of 13478628 in words is "thirteen million, four hundred seventy-eight thousand, six hundred twenty-eight".