440040444040 has 16 divisors (see below), whose sum is σ = 990090999180. Its totient is φ = 176016177600.

The previous prime is 440040444013. The next prime is 440040444059. The reversal of 440040444040 is 40444040044.

It can be written as a sum of positive squares in 2 ways, for example, as 438765811236 + 1274632804 = 662394^2 + 35702^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5500505511 + ... + 5500505590.

Almost surely, 2^440040444040 is an apocalyptic number.

440040444040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440040444040 is an abundant number, since it is smaller than the sum of its proper divisors (550050555140).

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

440040444040 is a wasteful number, since it uses less digits than its factorization.

440040444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001011112 (or 11001011108 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 440040444040 its reverse (40444040044), we get a palindrome (480484484084).

It can be divided in two parts, 4400404 and 44040, that added together give a palindrome (4444444).

The spelling of 440040444040 in words is "four hundred forty billion, forty million, four hundred forty-four thousand, forty".