1440340111432 has 64 divisors (see below), whose sum is σ = 2727564840000. Its totient is φ = 713029935360.

The previous prime is 1440340111391. The next prime is 1440340111433. The reversal of 1440340111432 is 2341110430441.

It is a super-3 number, since 3×1440340111432³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1440340111432.

It is not an unprimeable number, because it can be changed into a prime (1440340111433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523949194 + ... + 523951942.

It is an arithmetic number, because the mean of its divisors is an integer number (42618200625).

Almost surely, 2^{1440340111432} is an apocalyptic number.

It is an amenable number.

1440340111432 is a deficient number, since it is larger than the sum of its proper divisors (1287224728568).

1440340111432 is a wasteful number, since it uses less digits than its factorization.

1440340111432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366 (or 4362 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1440340111432 its reverse (2341110430441), we get a palindrome (3781450541873).

The spelling of 1440340111432 in words is "one trillion, four hundred forty billion, three hundred forty million, one hundred eleven thousand, four hundred thirty-two".