13228236 has 54 divisors (see below), whose sum is σ = 38902500. Its totient is φ = 3778992.

The previous prime is 13228211. The next prime is 13228247. The reversal of 13228236 is 63282231.

13228236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1986 + ... + 5513.

Almost surely, 2^13228236 is an apocalyptic number.

It is an amenable number.

13228236 is an abundant number, since it is smaller than the sum of its proper divisors (25674264).

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

13228236 is a wasteful number, since it uses less digits than its factorization.

13228236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7523 (or 7511 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 13228236 is about 3637.0642006981. The cubic root of 13228236 is about 236.5015427791.

The spelling of 13228236 in words is "thirteen million, two hundred twenty-eight thousand, two hundred thirty-six".