10440323120 has 80 divisors (see below), whose sum is σ = 24564409920. Its totient is φ = 4126359552.

The previous prime is 10440323059. The next prime is 10440323123. The reversal of 10440323120 is 2132304401.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10440323092 and 10440323101.

It is not an unprimeable number, because it can be changed into a prime (10440323123) 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, 3243752 + ... + 3246968.

It is an arithmetic number, because the mean of its divisors is an integer number (307055124).

Almost surely, 2^10440323120 is an apocalyptic number.

10440323120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10440323120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12282204960).

10440323120 is an abundant number, since it is smaller than the sum of its proper divisors (14124086800).

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

10440323120 is a wasteful number, since it uses less digits than its factorization.

10440323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702 (or 3696 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10440323120 its reverse (2132304401), we get a palindrome (12572627521).

The spelling of 10440323120 in words is "ten billion, four hundred forty million, three hundred twenty-three thousand, one hundred twenty".