4444444440040 has 64 divisors (see below), whose sum is σ = 10944625728960. Its totient is φ = 1610897195520.

The previous prime is 4444444440017. The next prime is 4444444440047. The reversal of 4444444440040 is 400444444444.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4444444439975 and 4444444440002.

It is not an unprimeable number, because it can be changed into a prime (4444444440047) 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, 16316077 + ... + 16586236.

It is an arithmetic number, because the mean of its divisors is an integer number (171009777015).

Almost surely, 2^{4444444440040} is an apocalyptic number.

4444444440040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444444440040 is an abundant number, since it is smaller than the sum of its proper divisors (6500181288920).

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

4444444440040 is a wasteful number, since it uses less digits than its factorization.

4444444440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32902642 (or 32902638 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 4444444440040 its reverse (400444444444), we get a palindrome (4844888884484).

The spelling of 4444444440040 in words is "four trillion, four hundred forty-four billion, four hundred forty-four million, four hundred forty thousand, forty".