27164228 has 48 divisors (see below), whose sum is σ = 59740800. Its totient is φ = 10739232.

The previous prime is 27164117. The next prime is 27164231. The reversal of 27164228 is 82246172.

It is a junction number, because it is equal to n+sod(n) for n = 27164194 and 27164203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17075 + ... + 18597.

It is an arithmetic number, because the mean of its divisors is an integer number (1244600).

Almost surely, 2^27164228 is an apocalyptic number.

27164228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27164228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29870400).

27164228 is an abundant number, since it is smaller than the sum of its proper divisors (32576572).

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

27164228 is a wasteful number, since it uses less digits than its factorization.

27164228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561 (or 1545 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 27164228 is about 5211.9313119035. The cubic root of 27164228 is about 300.6070227680.

The spelling of 27164228 in words is "twenty-seven million, one hundred sixty-four thousand, two hundred twenty-eight".