440450520540 has 96 divisors (see below), whose sum is σ = 1277828213760. Its totient is φ = 113284144896.

The previous prime is 440450520539. The next prime is 440450520541. The reversal of 440450520540 is 45025054044.

It is an interprime number because it is at equal distance from previous prime (440450520539) and next prime (440450520541).

It is a super-2 number, since 2×440450520540² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440450520541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 986164 + ... + 1361403.

It is an arithmetic number, because the mean of its divisors is an integer number (13310710560).

Almost surely, 2^440450520540 is an apocalyptic number.

It is an amenable number.

440450520540 is an abundant number, since it is smaller than the sum of its proper divisors (837377693220).

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

440450520540 is a wasteful number, since it uses less digits than its factorization.

440450520540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347691 (or 2347689 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 33.

Adding to 440450520540 its reverse (45025054044), we get a palindrome (485475574584).

The spelling of 440450520540 in words is "four hundred forty billion, four hundred fifty million, five hundred twenty thousand, five hundred forty".