1229288 has 16 divisors (see below), whose sum is σ = 2367780. Its totient is φ = 597888.

The previous prime is 1229279. The next prime is 1229297. The reversal of 1229288 is 8829221.

It is an interprime number because it is at equal distance from previous prime (1229279) and next prime (1229297).

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 14884 = 1102^2 + 122^2 .

It is a super-2 number, since 2×1229288² = 3022297973888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781 + ... + 2372.

2^1229288 is an apocalyptic number.

It is an amenable number.

1229288 is a deficient number, since it is larger than the sum of its proper divisors (1138492).

1229288 is a wasteful number, since it uses less digits than its factorization.

1229288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4196 (or 4192 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 1229288 is about 1108.7326097847. The cubic root of 1229288 is about 107.1234490984.

The spelling of 1229288 in words is "one million, two hundred twenty-nine thousand, two hundred eighty-eight".