1223456668 has 24 divisors (see below), whose sum is σ = 2450319872. Its totient is φ = 523608624.

The previous prime is 1223456653. The next prime is 1223456693. The reversal of 1223456668 is 8666543221.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9696 + ... + 50407.

Almost surely, 2^1223456668 is an apocalyptic number.

It is an amenable number.

1223456668 is an abundant number, since it is smaller than the sum of its proper divisors (1226863204).

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

1223456668 is a wasteful number, since it uses less digits than its factorization.

1223456668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60841 (or 60839 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 1223456668 is about 34977.9454513841. The cubic root of 1223456668 is about 1069.5379459001.

Adding to 1223456668 its reverse (8666543221), we get a palindrome (9889999889).

The spelling of 1223456668 in words is "one billion, two hundred twenty-three million, four hundred fifty-six thousand, six hundred sixty-eight".