13808228 has 24 divisors (see below), whose sum is σ = 27791232. Its totient is φ = 5880384.

The previous prime is 13808209. The next prime is 13808251. The reversal of 13808228 is 82280831.

It is a junction number, because it is equal to n+sod(n) for n = 13808194 and 13808203.

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 7 ways as a sum of consecutive naturals, for example, 3200 + ... + 6152.

It is an arithmetic number, because the mean of its divisors is an integer number (1157968).

Almost surely, 2^13808228 is an apocalyptic number.

It is an amenable number.

13808228 is an abundant number, since it is smaller than the sum of its proper divisors (13983004).

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

13808228 is a wasteful number, since it uses less digits than its factorization.

13808228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131 (or 3129 counting only the distinct ones).

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

The square root of 13808228 is about 3715.9424107486. The cubic root of 13808228 is about 239.9086921182.

The spelling of 13808228 in words is "thirteen million, eight hundred eight thousand, two hundred twenty-eight".