1288228 has 6 divisors (see below), whose sum is σ = 2254406. Its totient is φ = 644112.

The previous prime is 1288213. The next prime is 1288247. The reversal of 1288228 is 8228821.

It can be written as a sum of positive squares in only one way, i.e., 906304 + 381924 = 952^2 + 618^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1288228.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161025 + ... + 161032.

2^1288228 is an apocalyptic number.

It is an amenable number.

1288228 is a deficient number, since it is larger than the sum of its proper divisors (966178).

1288228 is a wasteful number, since it uses less digits than its factorization.

1288228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322061 (or 322059 counting only the distinct ones).

The product of its digits is 4096, while the sum is 31.

The square root of 1288228 is about 1135.0013215851. The cubic root of 1288228 is about 108.8088561491.

The spelling of 1288228 in words is "one million, two hundred eighty-eight thousand, two hundred twenty-eight".