440404440440 has 32 divisors (see below), whose sum is σ = 990945517680. Its totient is φ = 176155460352.

The previous prime is 440404440403. The next prime is 440404440451. The reversal of 440404440440 is 44044404044.

It is a junction number, because it is equal to n+sod(n) for n = 440404440397 and 440404440406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025852 + ... + 1390388.

Almost surely, 2^440404440440 is an apocalyptic number.

440404440440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440404440440 is an abundant number, since it is smaller than the sum of its proper divisors (550541077240).

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

440404440440 is a wasteful number, since it uses less digits than its factorization.

440404440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394751 (or 394747 counting only the distinct ones).

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

Adding to 440404440440 its reverse (44044404044), we get a palindrome (484448844484).

The spelling of 440404440440 in words is "four hundred forty billion, four hundred four million, four hundred forty thousand, four hundred forty".