27222318 has 28 divisors (see below), whose sum is σ = 61225488. Its totient is φ = 9073620.

The previous prime is 27222313. The next prime is 27222347. The reversal of 27222318 is 81322272.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 27222291 and 27222300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27222313) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 7878 + ... + 10793.

Almost surely, 2^27222318 is an apocalyptic number.

27222318 is an abundant number, since it is smaller than the sum of its proper divisors (34003170).

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

27222318 is an equidigital number, since it uses as much as digits as its factorization.

27222318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18691 (or 18676 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 27222318 is about 5217.5011260181. The cubic root of 27222318 is about 300.8211503231.

The spelling of 27222318 in words is "twenty-seven million, two hundred twenty-two thousand, three hundred eighteen".