4444440040 has 32 divisors (see below), whose sum is σ = 10006380360. Its totient is φ = 1776640000.

The previous prime is 4444440017. The next prime is 4444440041. The reversal of 4444440040 is 400444444.

It can be written as a sum of positive squares in 4 ways, for example, as 4443822244 + 617796 = 66662^2 + 786^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4444439990 and 4444440008.

It is not an unprimeable number, because it can be changed into a prime (4444440041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29340 + ... + 98740.

Almost surely, 2^4444440040 is an apocalyptic number.

4444440040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444440040 is an abundant number, since it is smaller than the sum of its proper divisors (5561940320).

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

4444440040 is a wasteful number, since it uses less digits than its factorization.

4444440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71013 (or 71009 counting only the distinct ones).

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

The square root of 4444440040 is about 66666.6336333251. The cubic root of 4444440040 is about 1644.1408397721.

Adding to 4444440040 its reverse (400444444), we get a palindrome (4844884484).

The spelling of 4444440040 in words is "four billion, four hundred forty-four million, four hundred forty thousand, forty".