1223266044 has 96 divisors (see below), whose sum is σ = 3832367616. Its totient is φ = 293287680.

The previous prime is 1223266043. The next prime is 1223266049. The reversal of 1223266044 is 4406623221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223266043) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 38907 + ... + 62930.

It is an arithmetic number, because the mean of its divisors is an integer number (39920496).

Almost surely, 2^1223266044 is an apocalyptic number.

1223266044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1223266044 is an abundant number, since it is smaller than the sum of its proper divisors (2609101572).

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

1223266044 is a wasteful number, since it uses less digits than its factorization.

1223266044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101875 (or 101873 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1223266044 is about 34975.2204281832. The cubic root of 1223266044 is about 1069.4823955902.

Adding to 1223266044 its reverse (4406623221), we get a palindrome (5629889265).

The spelling of 1223266044 in words is "one billion, two hundred twenty-three million, two hundred sixty-six thousand, forty-four".