13885228 has 18 divisors (see below), whose sum is σ = 28266756. Its totient is φ = 5950728.

The previous prime is 13885213. The next prime is 13885253. The reversal of 13885228 is 82258831.

It is a super-2 number, since 2×13885228² = 385599113223968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35226 + ... + 35617.

Almost surely, 2^13885228 is an apocalyptic number.

It is an amenable number.

13885228 is an abundant number, since it is smaller than the sum of its proper divisors (14381528).

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

13885228 is a wasteful number, since it uses less digits than its factorization.

13885228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70861 (or 70852 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 13885228 is about 3726.2887703451. The cubic root of 13885228 is about 240.3538068670.

The spelling of 13885228 in words is "thirteen million, eight hundred eighty-five thousand, two hundred twenty-eight".