13308028 has 24 divisors (see below), whose sum is σ = 23783760. Its totient is φ = 6514560.

The previous prime is 13308019. The next prime is 13308041. The reversal of 13308028 is 82080331.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13307993 and 13308011.

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 in 7 ways as a sum of consecutive naturals, for example, 57000 + ... + 57232.

It is an arithmetic number, because the mean of its divisors is an integer number (990990).

Almost surely, 2^13308028 is an apocalyptic number.

It is an amenable number.

13308028 is a deficient number, since it is larger than the sum of its proper divisors (10475732).

13308028 is a wasteful number, since it uses less digits than its factorization.

13308028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 13308028 is about 3648.0169955744. The cubic root of 13308028 is about 236.9761113442.

Adding to 13308028 its reverse (82080331), we get a palindrome (95388359).

The spelling of 13308028 in words is "thirteen million, three hundred eight thousand, twenty-eight".