1440130881280 has 576 divisors, whose sum is σ = 4423987814400. Its totient is φ = 436909178880.

The previous prime is 1440130881257. The next prime is 1440130881379. The reversal of 1440130881280 is 821880310441.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 393584091 + ... + 393587749.

It is an arithmetic number, because the mean of its divisors is an integer number (7680534400).

Almost surely, 2^{1440130881280} is an apocalyptic number.

1440130881280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440130881280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2211993907200).

1440130881280 is an abundant number, since it is smaller than the sum of its proper divisors (2983856933120).

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

1440130881280 is a wasteful number, since it uses less digits than its factorization.

1440130881280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840 (or 3826 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The spelling of 1440130881280 in words is "one trillion, four hundred forty billion, one hundred thirty million, eight hundred eighty-one thousand, two hundred eighty".