440424421323 has 16 divisors (see below), whose sum is σ = 595308834816. Its totient is φ = 289578576960.

The previous prime is 440424421291. The next prime is 440424421331. The reversal of 440424421323 is 323124424044.

It is not a de Polignac number, because 440424421323 - 2⁵ = 440424421291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440424421823) 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 15 ways as a sum of consecutive naturals, for example, 5189158 + ... + 5273348.

It is an arithmetic number, because the mean of its divisors is an integer number (37206802176).

Almost surely, 2^440424421323 is an apocalyptic number.

440424421323 is a deficient number, since it is larger than the sum of its proper divisors (154884413493).

440424421323 is a wasteful number, since it uses less digits than its factorization.

440424421323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108154.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 440424421323 its reverse (323124424044), we get a palindrome (763548845367).

The spelling of 440424421323 in words is "four hundred forty billion, four hundred twenty-four million, four hundred twenty-one thousand, three hundred twenty-three".