13210928 has 20 divisors (see below), whose sum is σ = 26943960. Its totient is φ = 6257664.

The previous prime is 13210913. The next prime is 13210931. The reversal of 13210928 is 82901231.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 13210897 and 13210906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21425 + ... + 22032.

It is an arithmetic number, because the mean of its divisors is an integer number (1347198).

Almost surely, 2^13210928 is an apocalyptic number.

It is an amenable number.

13210928 is an abundant number, since it is smaller than the sum of its proper divisors (13733032).

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

13210928 is a wasteful number, since it uses less digits than its factorization.

13210928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43484 (or 43478 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13210928 is about 3634.6840302838. The cubic root of 13210928 is about 236.3983505047.

The spelling of 13210928 in words is "thirteen million, two hundred ten thousand, nine hundred twenty-eight".