2144320441440 has 48 divisors (see below), whose sum is σ = 6754609392048. Its totient is φ = 571818784256.

The previous prime is 2144320441429. The next prime is 2144320441477. The reversal of 2144320441440 is 441440234412.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2144320441440² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 2233666647 + ... + 2233667606.

It is an arithmetic number, because the mean of its divisors is an integer number (140721029001).

Almost surely, 2^{2144320441440} is an apocalyptic number.

2144320441440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144320441440 is an abundant number, since it is smaller than the sum of its proper divisors (4610288950608).

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

2144320441440 is a wasteful number, since it uses less digits than its factorization.

2144320441440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467334271 (or 4467334263 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 2144320441440 its reverse (441440234412), we get a palindrome (2585760675852).

The spelling of 2144320441440 in words is "two trillion, one hundred forty-four billion, three hundred twenty million, four hundred forty-one thousand, four hundred forty".