1123228 has 24 divisors (see below), whose sum is σ = 2126880. Its totient is φ = 517440.

The previous prime is 1123219. The next prime is 1123231. The reversal of 1123228 is 8223211.

It is a super-2 number, since 2×1123228² = 2523282279968, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2458 + ... + 2878.

It is an arithmetic number, because the mean of its divisors is an integer number (88620).

2^1123228 is an apocalyptic number.

1123228 is the 567-th centered heptagonal number.

It is an amenable number.

1123228 is a deficient number, since it is larger than the sum of its proper divisors (1003652).

1123228 is a wasteful number, since it uses less digits than its factorization.

1123228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 475 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 1123228 is about 1059.8245137757. The cubic root of 1123228 is about 103.9495564049.

Adding to 1123228 its reverse (8223211), we get a palindrome (9346439).

The spelling of 1123228 in words is "one million, one hundred twenty-three thousand, two hundred twenty-eight".