440440444004 has 48 divisors (see below), whose sum is σ = 891479312640. Its totient is φ = 188174568960.

The previous prime is 440440443979. The next prime is 440440444007. The reversal of 440440444004 is 400444044044.

It is not an unprimeable number, because it can be changed into a prime (440440444007) 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, 177317 + ... + 955155.

It is an arithmetic number, because the mean of its divisors is an integer number (18572485680).

Almost surely, 2^440440444004 is an apocalyptic number.

440440444004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

440440444004 is an abundant number, since it is smaller than the sum of its proper divisors (451038868636).

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

440440444004 is a wasteful number, since it uses less digits than its factorization.

440440444004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778628 (or 778626 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 440440444004 its reverse (400444044044), we get a palindrome (840884488048).

The spelling of 440440444004 in words is "four hundred forty billion, four hundred forty million, four hundred forty-four thousand, four".