440142202243343 has 4 divisors (see below), whose sum is σ = 459278819732208. Its totient is φ = 421005584754480.

The previous prime is 440142202243313. The next prime is 440142202243421. The reversal of 440142202243343 is 343342202241044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440142202243343 - 2¹⁶ = 440142202177807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440142202243297 and 440142202243306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440142202243313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9568308744398 + ... + 9568308744443.

It is an arithmetic number, because the mean of its divisors is an integer number (114819704933052).

Almost surely, 2^{440142202243343} is an apocalyptic number.

440142202243343 is a deficient number, since it is larger than the sum of its proper divisors (19136617488865).

440142202243343 is a wasteful number, since it uses less digits than its factorization.

440142202243343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19136617488864.

The product of its (nonzero) digits is 442368, while the sum is 38.

Adding to 440142202243343 its reverse (343342202241044), we get a palindrome (783484404484387).

The spelling of 440142202243343 in words is "four hundred forty trillion, one hundred forty-two billion, two hundred two million, two hundred forty-three thousand, three hundred forty-three".