1440648242729 has 8 divisors (see below), whose sum is σ = 1501558835712. Its totient is φ = 1380640029120.

The previous prime is 1440648242707. The next prime is 1440648242767. The reversal of 1440648242729 is 9272428460441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1440648242729 - 2¹⁶ = 1440648177193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440648232729) 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, 225591584 + ... + 225597969.

It is an arithmetic number, because the mean of its divisors is an integer number (187694854464).

Almost surely, 2^{1440648242729} is an apocalyptic number.

It is an amenable number.

1440648242729 is a deficient number, since it is larger than the sum of its proper divisors (60910592983).

1440648242729 is a wasteful number, since it uses less digits than its factorization.

1440648242729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451189687.

The product of its (nonzero) digits is 6193152, while the sum is 53.

The spelling of 1440648242729 in words is "one trillion, four hundred forty billion, six hundred forty-eight million, two hundred forty-two thousand, seven hundred twenty-nine".