1442323344 has 320 divisors, whose sum is σ = 4885401600. Its totient is φ = 355829760.

The previous prime is 1442323331. The next prime is 1442323349. The reversal of 1442323344 is 4433232441.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1442323349) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7247757 + ... + 7247955.

It is an arithmetic number, because the mean of its divisors is an integer number (15266880).

Almost surely, 2^1442323344 is an apocalyptic number.

1442323344 is a gapful number since it is divisible by the number (14) 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 1442323344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2442700800).

1442323344 is an abundant number, since it is smaller than the sum of its proper divisors (3443078256).

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

1442323344 is a wasteful number, since it uses less digits than its factorization.

1442323344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 312 counting only the distinct ones).

The product of its digits is 27648, while the sum is 30.

The square root of 1442323344 is about 37977.9323291830. The cubic root of 1442323344 is about 1129.8502278852.

Adding to 1442323344 its reverse (4433232441), we get a palindrome (5875555785).

The spelling of 1442323344 in words is "one billion, four hundred forty-two million, three hundred twenty-three thousand, three hundred forty-four".