440322144234 has 128 divisors (see below), whose sum is σ = 1082513590272. Its totient is φ = 116535767040.

The previous prime is 440322144221. The next prime is 440322144263. The reversal of 440322144234 is 432441223044.

It is a junction number, because it is equal to n+sod(n) for n = 440322144195 and 440322144204.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 65104137 + ... + 65110899.

It is an arithmetic number, because the mean of its divisors is an integer number (8457137424).

Almost surely, 2^440322144234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440322144234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541256795136).

440322144234 is an abundant number, since it is smaller than the sum of its proper divisors (642191446038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440322144234 is a wasteful number, since it uses less digits than its factorization.

440322144234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8220.

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

Adding to 440322144234 its reverse (432441223044), we get a palindrome (872763367278).

The spelling of 440322144234 in words is "four hundred forty billion, three hundred twenty-two million, one hundred forty-four thousand, two hundred thirty-four".