1440540032013 has 8 divisors (see below), whose sum is σ = 2134133380800. Its totient is φ = 960360021324.

The previous prime is 1440540031991. The next prime is 1440540032017. The reversal of 1440540032013 is 3102300450441.

It is a happy number.

1440540032013 is a `hidden beast` number, since 14 + 40 + 5 + 400 + 3 + 201 + 3 = 666.

It is not a de Polignac number, because 1440540032013 - 2⁵ = 1440540031981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 53353334519 = 1440540032013 / (1 + 4 + 4 + 0 + 5 + 4 + 0 + 0 + 3 + 2 + 0 + 1 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440540032017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26676667233 + ... + 26676667286.

It is an arithmetic number, because the mean of its divisors is an integer number (266766672600).

Almost surely, 2^{1440540032013} is an apocalyptic number.

It is an amenable number.

1440540032013 is a deficient number, since it is larger than the sum of its proper divisors (693593348787).

1440540032013 is an equidigital number, since it uses as much as digits as its factorization.

1440540032013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53353334528 (or 53353334522 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1440540032013 its reverse (3102300450441), we get a palindrome (4542840482454).

The spelling of 1440540032013 in words is "one trillion, four hundred forty billion, five hundred forty million, thirty-two thousand, thirteen".