27228212 has 12 divisors (see below), whose sum is σ = 51981216. Its totient is φ = 12376440.

The previous prime is 27228209. The next prime is 27228217. The reversal of 27228212 is 21282272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27228217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309368 + ... + 309455.

It is an arithmetic number, because the mean of its divisors is an integer number (4331768).

Almost surely, 2^27228212 is an apocalyptic number.

27228212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27228212 is a deficient number, since it is larger than the sum of its proper divisors (24753004).

27228212 is a wasteful number, since it uses less digits than its factorization.

27228212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618838 (or 618836 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 27228212 is about 5218.0659252256. The cubic root of 27228212 is about 300.8428593722.

The spelling of 27228212 in words is "twenty-seven million, two hundred twenty-eight thousand, two hundred twelve".