27280228 has 6 divisors (see below), whose sum is σ = 47740406. Its totient is φ = 13640112.

The previous prime is 27280207. The next prime is 27280241. The reversal of 27280228 is 82208272.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15665764 + 11614464 = 3958^2 + 3408^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27280228.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3410025 + ... + 3410032.

Almost surely, 2^27280228 is an apocalyptic number.

It is an amenable number.

27280228 is a deficient number, since it is larger than the sum of its proper divisors (20460178).

27280228 is a wasteful number, since it uses less digits than its factorization.

27280228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820061 (or 6820059 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 27280228 is about 5223.0477692627. The cubic root of 27280228 is about 301.0343113832.

The spelling of 27280228 in words is "twenty-seven million, two hundred eighty thousand, two hundred twenty-eight".