1440213222320 has 40 divisors (see below), whose sum is σ = 3352054361040. Its totient is φ = 575473053440.

The previous prime is 1440213222313. The next prime is 1440213222359. The reversal of 1440213222320 is 232223120441.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1440213222320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9490430 + ... + 9640989.

It is an arithmetic number, because the mean of its divisors is an integer number (83801359026).

Almost surely, 2^{1440213222320} is an apocalyptic number.

1440213222320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440213222320 is an abundant number, since it is smaller than the sum of its proper divisors (1911841138720).

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

1440213222320 is a wasteful number, since it uses less digits than its factorization.

1440213222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19132373 (or 19132367 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1440213222320 its reverse (232223120441), we get a palindrome (1672436342761).

The spelling of 1440213222320 in words is "one trillion, four hundred forty billion, two hundred thirteen million, two hundred twenty-two thousand, three hundred twenty".