27228120 has 32 divisors (see below), whose sum is σ = 81684720. Its totient is φ = 7260800.

The previous prime is 27228119. The next prime is 27228133. The reversal of 27228120 is 2182272.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113331 + ... + 113570.

Almost surely, 2^27228120 is an apocalyptic number.

27228120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27228120 is an abundant number, since it is smaller than the sum of its proper divisors (54456600).

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

27228120 is a wasteful number, since it uses less digits than its factorization.

27228120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226915 (or 226911 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 27228120 is about 5218.0571096913. The cubic root of 27228120 is about 300.8425205377.

The spelling of 27228120 in words is "twenty-seven million, two hundred twenty-eight thousand, one hundred twenty".