1440311423322 has 16 divisors (see below), whose sum is σ = 2880662369760. Its totient is φ = 480097220592.

The previous prime is 1440311423311. The next prime is 1440311423323. The reversal of 1440311423322 is 2233241130441.

It is a self number, because there is not a number n which added to its sum of digits gives 1440311423322.

It is not an unprimeable number, because it can be changed into a prime (1440311423323) 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, 1162072 + ... + 2056947.

It is an arithmetic number, because the mean of its divisors is an integer number (180041398110).

Almost surely, 2^{1440311423322} is an apocalyptic number.

1440311423322 is an abundant number, since it is smaller than the sum of its proper divisors (1440350946438).

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

1440311423322 is a wasteful number, since it uses less digits than its factorization.

1440311423322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293597.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 1440311423322 its reverse (2233241130441), we get a palindrome (3673552553763).

The spelling of 1440311423322 in words is "one trillion, four hundred forty billion, three hundred eleven million, four hundred twenty-three thousand, three hundred twenty-two".