13228808 has 32 divisors (see below), whose sum is σ = 25608960. Its totient is φ = 6403200.

The previous prime is 13228801. The next prime is 13228819. The reversal of 13228808 is 80882231.

It is a super-2 number, since 2×13228808² = 350002722201728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13228801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 56660 + ... + 56892.

It is an arithmetic number, because the mean of its divisors is an integer number (800280).

Almost surely, 2^13228808 is an apocalyptic number.

It is an amenable number.

13228808 is a deficient number, since it is larger than the sum of its proper divisors (12380152).

13228808 is a wasteful number, since it uses less digits than its factorization.

13228808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 13228808 is about 3637.1428346987. The cubic root of 13228808 is about 236.5049515715.

The spelling of 13228808 in words is "thirteen million, two hundred twenty-eight thousand, eight hundred eight".