13351228 has 48 divisors (see below), whose sum is σ = 26812800. Its totient is φ = 5762880.

The previous prime is 13351213. The next prime is 13351229. The reversal of 13351228 is 82215331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13351229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95983 + ... + 96121.

It is an arithmetic number, because the mean of its divisors is an integer number (558600).

Almost surely, 2^13351228 is an apocalyptic number.

It is an amenable number.

13351228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

13351228 is a wasteful number, since it uses less digits than its factorization.

13351228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 248 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 13351228 is about 3653.9332232541. The cubic root of 13351228 is about 237.2322552437.

Adding to 13351228 its reverse (82215331), we get a palindrome (95566559).

The spelling of 13351228 in words is "thirteen million, three hundred fifty-one thousand, two hundred twenty-eight".