1440343340432 has 20 divisors (see below), whose sum is σ = 2790916548480. Its totient is φ = 720106811808.

The previous prime is 1440343340419. The next prime is 1440343340519. The reversal of 1440343340432 is 2340433430441.

It is a junction number, because it is equal to n+sod(n) for n = 1440343340392 and 1440343340401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3870188 + ... + 4225995.

It is an arithmetic number, because the mean of its divisors is an integer number (139545827424).

Almost surely, 2^{1440343340432} is an apocalyptic number.

It is an amenable number.

1440343340432 is a deficient number, since it is larger than the sum of its proper divisors (1350573208048).

1440343340432 is a wasteful number, since it uses less digits than its factorization.

1440343340432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8107310 (or 8107304 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 1440343340432 its reverse (2340433430441), we get a palindrome (3780776770873).

Subtracting 1440343340432 from its reverse (2340433430441), we obtain a palindrome (900090090009).

The spelling of 1440343340432 in words is "one trillion, four hundred forty billion, three hundred forty-three million, three hundred forty thousand, four hundred thirty-two".