10440320440 has 48 divisors (see below), whose sum is σ = 25820391240. Its totient is φ = 3796478400.

The previous prime is 10440320413. The next prime is 10440320447. The reversal of 10440320440 is 4402304401.

10440320440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440320447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073706 + ... + 1083385.

Almost surely, 2^10440320440 is an apocalyptic number.

10440320440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10440320440 is an abundant number, since it is smaller than the sum of its proper divisors (15380070800).

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

10440320440 is a wasteful number, since it uses less digits than its factorization.

10440320440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157124 (or 2157109 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 10440320440 its reverse (4402304401), we get a palindrome (14842624841).

The spelling of 10440320440 in words is "ten billion, four hundred forty million, three hundred twenty thousand, four hundred forty".