1440201444440 has 64 divisors (see below), whose sum is σ = 3536993848320. Its totient is φ = 523420144000.

The previous prime is 1440201444413. The next prime is 1440201444443. The reversal of 1440201444440 is 444441020441.

It is a junction number, because it is equal to n+sod(n) for n = 1440201444397 and 1440201444406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440201444443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106856 + ... + 1700535.

It is an arithmetic number, because the mean of its divisors is an integer number (55265528880).

Almost surely, 2^{1440201444440} is an apocalyptic number.

1440201444440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440201444440 is an abundant number, since it is smaller than the sum of its proper divisors (2096792403880).

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

1440201444440 is a wasteful number, since it uses less digits than its factorization.

1440201444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809224 (or 1809220 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 1440201444440 its reverse (444441020441), we get a palindrome (1884642464881).

The spelling of 1440201444440 in words is "one trillion, four hundred forty billion, two hundred one million, four hundred forty-four thousand, four hundred forty".