1044223128 has 192 divisors, whose sum is σ = 3255033600. Its totient is φ = 299738880.

The previous prime is 1044223093. The next prime is 1044223129. The reversal of 1044223128 is 8213224401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044223129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1262251 + ... + 1263077.

It is an arithmetic number, because the mean of its divisors is an integer number (16953300).

Almost surely, 2^1044223128 is an apocalyptic number.

1044223128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044223128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1627516800).

1044223128 is an abundant number, since it is smaller than the sum of its proper divisors (2210810472).

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

1044223128 is a wasteful number, since it uses less digits than its factorization.

1044223128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1044223128 is about 32314.4414774571. The cubic root of 1044223128 is about 1014.5289305409.

Adding to 1044223128 its reverse (8213224401), we get a palindrome (9257447529).

The spelling of 1044223128 in words is "one billion, forty-four million, two hundred twenty-three thousand, one hundred twenty-eight".