1440120320320 has 112 divisors (see below), whose sum is σ = 3828041160768. Its totient is φ = 511501455360.

The previous prime is 1440120320291. The next prime is 1440120320321. The reversal of 1440120320320 is 230230210441.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1440120320291 and 1440120320300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440120320321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4605909 + ... + 4908628.

Almost surely, 2^{1440120320320} is an apocalyptic number.

1440120320320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440120320320 is an abundant number, since it is smaller than the sum of its proper divisors (2387920840448).

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

1440120320320 is a wasteful number, since it uses less digits than its factorization.

1440120320320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9514608 (or 9514598 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1440120320320 its reverse (230230210441), we get a palindrome (1670350530761).

The spelling of 1440120320320 in words is "one trillion, four hundred forty billion, one hundred twenty million, three hundred twenty thousand, three hundred twenty".