1228268 has 6 divisors (see below), whose sum is σ = 2149476. Its totient is φ = 614132.

The previous prime is 1228247. The next prime is 1228273. The reversal of 1228268 is 8628221.

It is a self number, because there is not a number n which added to its sum of digits gives 1228268.

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, 153530 + ... + 153537.

It is an arithmetic number, because the mean of its divisors is an integer number (358246).

2^1228268 is an apocalyptic number.

It is an amenable number.

1228268 is a deficient number, since it is larger than the sum of its proper divisors (921208).

1228268 is a wasteful number, since it uses less digits than its factorization.

1228268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307071 (or 307069 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 1228268 is about 1108.2725296605. The cubic root of 1228268 is about 107.0938123891.

The spelling of 1228268 in words is "one million, two hundred twenty-eight thousand, two hundred sixty-eight".