7282228 has 6 divisors (see below), whose sum is σ = 12743906. Its totient is φ = 3641112.

The previous prime is 7282217. The next prime is 7282259. The reversal of 7282228 is 8222827.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6822544 + 459684 = 2612^2 + 678^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7282228.

It is a congruent number.

It is an unprimeable number.

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, 910275 + ... + 910282.

Almost surely, 2^7282228 is an apocalyptic number.

It is an amenable number.

7282228 is a deficient number, since it is larger than the sum of its proper divisors (5461678).

7282228 is a wasteful number, since it uses less digits than its factorization.

7282228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820561 (or 1820559 counting only the distinct ones).

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

The square root of 7282228 is about 2698.5603569311. The cubic root of 7282228 is about 193.8301911548.

The spelling of 7282228 in words is "seven million, two hundred eighty-two thousand, two hundred twenty-eight".