13523228 has 24 divisors (see below), whose sum is σ = 25419744. Its totient is φ = 6272000.

The previous prime is 13523227. The next prime is 13523239. The reversal of 13523228 is 82232531.

13523228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13523197 and 13523206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13523227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3428 + ... + 6228.

It is an arithmetic number, because the mean of its divisors is an integer number (1059156).

Almost surely, 2^13523228 is an apocalyptic number.

It is an amenable number.

13523228 is a deficient number, since it is larger than the sum of its proper divisors (11896516).

13523228 is a wasteful number, since it uses less digits than its factorization.

13523228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893 (or 2891 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 13523228 is about 3677.3941861052. The cubic root of 13523228 is about 238.2466430712.

Adding to 13523228 its reverse (82232531), we get a palindrome (95755759).

The spelling of 13523228 in words is "thirteen million, five hundred twenty-three thousand, two hundred twenty-eight".