13280836 has 12 divisors (see below), whose sum is σ = 23278528. Its totient is φ = 6629832.

The previous prime is 13280831. The next prime is 13280863. The reversal of 13280836 is 63808231.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 13280798 and 13280807.

It is not an unprimeable number, because it can be changed into a prime (13280831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625 + ... + 5191.

Almost surely, 2^13280836 is an apocalyptic number.

It is an amenable number.

13280836 is a deficient number, since it is larger than the sum of its proper divisors (9997692).

13280836 is a wasteful number, since it uses less digits than its factorization.

13280836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298 (or 5296 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 13280836 is about 3644.2881335043. The cubic root of 13280836 is about 236.8145986024.

The spelling of 13280836 in words is "thirteen million, two hundred eighty thousand, eight hundred thirty-six".