1224444668 has 12 divisors (see below), whose sum is σ = 2155610352. Its totient is φ = 608556000.

The previous prime is 1224444647. The next prime is 1224444769. The reversal of 1224444668 is 8664444221.

It is a plaindrome in base 10.

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, 915833 + ... + 917168.

It is an arithmetic number, because the mean of its divisors is an integer number (179634196).

Almost surely, 2^1224444668 is an apocalyptic number.

It is an amenable number.

1224444668 is a deficient number, since it is larger than the sum of its proper divisors (931165684).

1224444668 is a wasteful number, since it uses less digits than its factorization.

1224444668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833172 (or 1833170 counting only the distinct ones).

The product of its digits is 294912, while the sum is 41.

The square root of 1224444668 is about 34992.0657864036. The cubic root of 1224444668 is about 1069.8257695175.

Adding to 1224444668 its reverse (8664444221), we get a palindrome (9888888889).

The spelling of 1224444668 in words is "one billion, two hundred twenty-four million, four hundred forty-four thousand, six hundred sixty-eight".