4000040000440 has 64 divisors (see below), whose sum is σ = 9915490804320. Its totient is φ = 1440158400000.

The previous prime is 4000040000423. The next prime is 4000040000443. The reversal of 4000040000440 is 440000400004.

4000040000440 = 499995² + 499996² + ... + 500010².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000040000443) 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, 44960511 + ... + 45049390.

Almost surely, 2^{4000040000440} is an apocalyptic number.

4000040000440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4000040000440 is an abundant number, since it is smaller than the sum of its proper divisors (5915450803880).

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

4000040000440 is a wasteful number, since it uses less digits than its factorization.

4000040000440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90010024 (or 90010020 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 4000040000440 its reverse (440000400004), we get a palindrome (4440040400444).

The spelling of 4000040000440 in words is "four trillion, forty million, four hundred forty", and thus it is an aban number.