1440120320322 has 16 divisors (see below), whose sum is σ = 2896331372640. Its totient is φ = 477358318112.

The previous prime is 1440120320321. The next prime is 1440120320347. The reversal of 1440120320322 is 2230230210441.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1440120320292 and 1440120320301.

It is not an unprimeable number, because it can be changed into a prime (1440120320321) 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, 670446003 + ... + 670448150.

It is an arithmetic number, because the mean of its divisors is an integer number (181020710790).

Almost surely, 2^{1440120320322} is an apocalyptic number.

1440120320322 is an abundant number, since it is smaller than the sum of its proper divisors (1456211052318).

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

1440120320322 is a wasteful number, since it uses less digits than its factorization.

1440120320322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340894337.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1440120320322 its reverse (2230230210441), we get a palindrome (3670350530763).

The spelling of 1440120320322 in words is "one trillion, four hundred forty billion, one hundred twenty million, three hundred twenty thousand, three hundred twenty-two".