1444422340 has 48 divisors (see below), whose sum is σ = 3217197312. Its totient is φ = 542854656.

The previous prime is 1444422319. The next prime is 1444422341. The reversal of 1444422340 is 432244441.

It is a junction number, because it is equal to n+sod(n) for n = 1444422299 and 1444422308.

It is not an unprimeable number, because it can be changed into a prime (1444422341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215317 + ... + 221923.

It is an arithmetic number, because the mean of its divisors is an integer number (67024944).

Almost surely, 2^1444422340 is an apocalyptic number.

1444422340 is a gapful number since it is divisible by the number (10) 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 1444422340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608598656).

1444422340 is an abundant number, since it is smaller than the sum of its proper divisors (1772774972).

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

1444422340 is a wasteful number, since it uses less digits than its factorization.

1444422340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276 (or 7274 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 1444422340 is about 38005.5566989881. The cubic root of 1444422340 is about 1130.3980480898.

Adding to 1444422340 its reverse (432244441), we get a palindrome (1876666781).

The spelling of 1444422340 in words is "one billion, four hundred forty-four million, four hundred twenty-two thousand, three hundred forty".