1440322213423 has 8 divisors (see below), whose sum is σ = 1462452813360. Its totient is φ = 1418210238720.

The previous prime is 1440322213399. The next prime is 1440322213469. The reversal of 1440322213423 is 3243122230441.

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

It is a cyclic number.

It is not a de Polignac number, because 1440322213423 - 2⁵ = 1440322213391 is a prime.

It is a super-2 number, since 2×1440322213423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440322213123) 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, 4500418 + ... + 4809823.

It is an arithmetic number, because the mean of its divisors is an integer number (182806601670).

Almost surely, 2^{1440322213423} is an apocalyptic number.

1440322213423 is a deficient number, since it is larger than the sum of its proper divisors (22130599937).

1440322213423 is an equidigital number, since it uses as much as digits as its factorization.

1440322213423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9312617.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1440322213423 its reverse (3243122230441), we get a palindrome (4683444443864).

The spelling of 1440322213423 in words is "one trillion, four hundred forty billion, three hundred twenty-two million, two hundred thirteen thousand, four hundred twenty-three".