27220168 has 8 divisors (see below), whose sum is σ = 51037830. Its totient is φ = 13610080.

The previous prime is 27220163. The next prime is 27220169. The reversal of 27220168 is 86102272.

It can be written as a sum of positive squares in only one way, i.e., 21178404 + 6041764 = 4602^2 + 2458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×27220168³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (27220163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1701253 + ... + 1701268.

Almost surely, 2^27220168 is an apocalyptic number.

It is an amenable number.

27220168 is a deficient number, since it is larger than the sum of its proper divisors (23817662).

27220168 is a wasteful number, since it uses less digits than its factorization.

27220168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402527 (or 3402523 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 27220168 is about 5217.2950846200. The cubic root of 27220168 is about 300.8132305653.

The spelling of 27220168 in words is "twenty-seven million, two hundred twenty thousand, one hundred sixty-eight".