1440545203240 has 128 divisors (see below), whose sum is σ = 3850661203200. Its totient is φ = 478106449920.

The previous prime is 1440545203211. The next prime is 1440545203247. The reversal of 1440545203240 is 423025450441.

It is a junction number, because it is equal to n+sod(n) for n = 1440545203196 and 1440545203205.

It is not an unprimeable number, because it can be changed into a prime (1440545203247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 905772 + ... + 1923931.

It is an arithmetic number, because the mean of its divisors is an integer number (30083290650).

Almost surely, 2^{1440545203240} is an apocalyptic number.

1440545203240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440545203240 is an abundant number, since it is smaller than the sum of its proper divisors (2410115999960).

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

1440545203240 is a wasteful number, since it uses less digits than its factorization.

1440545203240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829827 (or 2829823 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 1440545203240 in words is "one trillion, four hundred forty billion, five hundred forty-five million, two hundred three thousand, two hundred forty".