1243228 has 18 divisors (see below), whose sum is σ = 2531256. Its totient is φ = 532728.

The previous prime is 1243211. The next prime is 1243271. The reversal of 1243228 is 8223421.

It is a d-powerful number, because it can be written as 1 + 2⁵ + 4⁵ + 3¹¹ + 2¹⁴ + 2²⁰ + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 1243199 and 1243208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2976 + ... + 3367.

2^1243228 is an apocalyptic number.

It is an amenable number.

1243228 is an abundant number, since it is smaller than the sum of its proper divisors (1288028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243228 is a wasteful number, since it uses less digits than its factorization.

1243228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6361 (or 6352 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 1243228 is about 1115.0013452907. The cubic root of 1243228 is about 107.5268510536.

Adding to 1243228 its reverse (8223421), we get a palindrome (9466649).

The spelling of 1243228 in words is "one million, two hundred forty-three thousand, two hundred twenty-eight".