1444320440331 has 8 divisors (see below), whose sum is σ = 1925776526544. Its totient is φ = 962872323840.

The previous prime is 1444320440327. The next prime is 1444320440347. The reversal of 1444320440331 is 1330440234441.

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

It is not a de Polignac number, because 1444320440331 - 2² = 1444320440327 is a prime.

It is a super-2 number, since 2×1444320440331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1444320440292 and 1444320440301.

It is not an unprimeable number, because it can be changed into a prime (1444320440131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1555906 + ... + 2304231.

It is an arithmetic number, because the mean of its divisors is an integer number (240722065818).

Almost surely, 2^{1444320440331} is an apocalyptic number.

1444320440331 is a deficient number, since it is larger than the sum of its proper divisors (481456086213).

1444320440331 is a wasteful number, since it uses less digits than its factorization.

1444320440331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984861.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 1444320440331 its reverse (1330440234441), we get a palindrome (2774760674772).

The spelling of 1444320440331 in words is "one trillion, four hundred forty-four billion, three hundred twenty million, four hundred forty thousand, three hundred thirty-one".