1440424144340 has 48 divisors (see below), whose sum is σ = 3270970708992. Its totient is φ = 530739503616.

The previous prime is 1440424144333. The next prime is 1440424144351. The reversal of 1440424144340 is 434414240441.

It is a self number, because there is not a number n which added to its sum of digits gives 1440424144340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45053612 + ... + 45085571.

It is an arithmetic number, because the mean of its divisors is an integer number (68145223104).

Almost surely, 2^{1440424144340} is an apocalyptic number.

1440424144340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440424144340 is an abundant number, since it is smaller than the sum of its proper divisors (1830546564652).

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

1440424144340 is a wasteful number, since it uses less digits than its factorization.

1440424144340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90139256 (or 90139254 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 1440424144340 its reverse (434414240441), we get a palindrome (1874838384781).

The spelling of 1440424144340 in words is "one trillion, four hundred forty billion, four hundred twenty-four million, one hundred forty-four thousand, three hundred forty".