1444321330 has 8 divisors (see below), whose sum is σ = 2599778412. Its totient is φ = 577728528.

The previous prime is 1444321303. The next prime is 1444321369. The reversal of 1444321330 is 331234441.

It can be written as a sum of positive squares in 2 ways, for example, as 1255780969 + 188540361 = 35437^2 + 13731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1444321295 and 1444321304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72216057 + ... + 72216076.

Almost surely, 2^1444321330 is an apocalyptic number.

1444321330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1444321330 is a deficient number, since it is larger than the sum of its proper divisors (1155457082).

1444321330 is a wasteful number, since it uses less digits than its factorization.

1444321330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144432140.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1444321330 is about 38004.2277911287. The cubic root of 1444321330 is about 1130.3716974938.

Adding to 1444321330 its reverse (331234441), we get a palindrome (1775555771).

The spelling of 1444321330 in words is "one billion, four hundred forty-four million, three hundred twenty-one thousand, three hundred thirty".