440310134023 has 4 divisors (see below), whose sum is σ = 466210730160. Its totient is φ = 414409537888.

The previous prime is 440310133999. The next prime is 440310134027. The reversal of 440310134023 is 320431013044.

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 440310134023 - 2²¹ = 440308036871 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 (440310134027) 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, 12950298043 + ... + 12950298076.

It is an arithmetic number, because the mean of its divisors is an integer number (116552682540).

Almost surely, 2^440310134023 is an apocalyptic number.

440310134023 is a deficient number, since it is larger than the sum of its proper divisors (25900596137).

440310134023 is a wasteful number, since it uses less digits than its factorization.

440310134023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25900596136.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 440310134023 its reverse (320431013044), we get a palindrome (760741147067).

The spelling of 440310134023 in words is "four hundred forty billion, three hundred ten million, one hundred thirty-four thousand, twenty-three".