440123423234 has 32 divisors (see below), whose sum is σ = 733535533440. Its totient is φ = 196376947200.

The previous prime is 440123423231. The next prime is 440123423251. The reversal of 440123423234 is 432324321044.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 440123423234.

It is not an unprimeable number, because it can be changed into a prime (440123423231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257519 + ... + 972914.

It is an arithmetic number, because the mean of its divisors is an integer number (22922985420).

Almost surely, 2^440123423234 is an apocalyptic number.

440123423234 is a deficient number, since it is larger than the sum of its proper divisors (293412110206).

440123423234 is a wasteful number, since it uses less digits than its factorization.

440123423234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230746.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 440123423234 its reverse (432324321044), we get a palindrome (872447744278).

The spelling of 440123423234 in words is "four hundred forty billion, one hundred twenty-three million, four hundred twenty-three thousand, two hundred thirty-four".