440500044540 has 48 divisors (see below), whose sum is σ = 1236570884640. Its totient is φ = 117164701440.

The previous prime is 440500044539. The next prime is 440500044547. The reversal of 440500044540 is 45440005044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 440500044498 and 440500044507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440500044547) 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, 9413251 + ... + 9459930.

It is an arithmetic number, because the mean of its divisors is an integer number (25761893430).

Almost surely, 2^440500044540 is an apocalyptic number.

It is an amenable number.

440500044540 is an abundant number, since it is smaller than the sum of its proper divisors (796070840100).

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

440500044540 is a wasteful number, since it uses less digits than its factorization.

440500044540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18873582 (or 18873580 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 440500044540 its reverse (45440005044), we get a palindrome (485940049584).

The spelling of 440500044540 in words is "four hundred forty billion, five hundred million, forty-four thousand, five hundred forty".