1440412223413 has 8 divisors (see below), whose sum is σ = 1553918626008. Its totient is φ = 1330103184384.

The previous prime is 1440412223387. The next prime is 1440412223431. The reversal of 1440412223413 is 3143222140441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 767449585764 + 672962637649 = 876042^2 + 820343^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440412223413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440412223813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799339956 + ... + 799341757.

It is an arithmetic number, because the mean of its divisors is an integer number (194239828251).

Almost surely, 2^{1440412223413} is an apocalyptic number.

It is an amenable number.

1440412223413 is a deficient number, since it is larger than the sum of its proper divisors (113506402595).

1440412223413 is a wasteful number, since it uses less digits than its factorization.

1440412223413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598681783.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1440412223413 its reverse (3143222140441), we get a palindrome (4583634363854).

The spelling of 1440412223413 in words is "one trillion, four hundred forty billion, four hundred twelve million, two hundred twenty-three thousand, four hundred thirteen".