27111228 has 24 divisors (see below), whose sum is σ = 63888720. Its totient is φ = 8947200.

The previous prime is 27111223. The next prime is 27111229. The reversal of 27111228 is 82211172.

It is a junction number, because it is equal to n+sod(n) for n = 27111198 and 27111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27111223) 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, 9973 + ... + 12396.

It is an arithmetic number, because the mean of its divisors is an integer number (2662030).

Almost surely, 2^27111228 is an apocalyptic number.

It is an amenable number.

27111228 is an abundant number, since it is smaller than the sum of its proper divisors (36777492).

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

27111228 is a wasteful number, since it uses less digits than its factorization.

27111228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22477 (or 22475 counting only the distinct ones).

The product of its digits is 448, while the sum is 24.

The square root of 27111228 is about 5206.8443418255. The cubic root of 27111228 is about 300.4113911554.

The spelling of 27111228 in words is "twenty-seven million, one hundred eleven thousand, two hundred twenty-eight".