440132421323 has 16 divisors (see below), whose sum is σ = 510304757760. Its totient is φ = 371792379456.

The previous prime is 440132421299. The next prime is 440132421343. The reversal of 440132421323 is 323124231044.

It is a cyclic number.

It is not a de Polignac number, because 440132421323 - 2⁸ = 440132421067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440132421343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301286 + ... + 985412.

It is an arithmetic number, because the mean of its divisors is an integer number (31894047360).

Almost surely, 2^440132421323 is an apocalyptic number.

440132421323 is a deficient number, since it is larger than the sum of its proper divisors (70172336437).

440132421323 is a wasteful number, since it uses less digits than its factorization.

440132421323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685466.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 440132421323 its reverse (323124231044), we get a palindrome (763256652367).

The spelling of 440132421323 in words is "four hundred forty billion, one hundred thirty-two million, four hundred twenty-one thousand, three hundred twenty-three".