13228232 has 16 divisors (see below), whose sum is σ = 25024140. Its totient is φ = 6555136.

The previous prime is 13228211. The next prime is 13228247. The reversal of 13228232 is 23282231.

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 5354596 = 2806^2 + 2314^2 .

It is a super-2 number, since 2×13228232² = 349972243691648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13228198 and 13228207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6413 + ... + 8220.

Almost surely, 2^13228232 is an apocalyptic number.

It is an amenable number.

13228232 is a deficient number, since it is larger than the sum of its proper divisors (11795908).

13228232 is a wasteful number, since it uses less digits than its factorization.

13228232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14752 (or 14748 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 13228232 is about 3637.0636508040. The cubic root of 13228232 is about 236.5015189410.

The spelling of 13228232 in words is "thirteen million, two hundred twenty-eight thousand, two hundred thirty-two".