5440000000 has 208 divisors, whose sum is σ = 14398205328. Its totient is φ = 2048000000.

The previous prime is 5439999989. The next prime is 5440000019. The reversal of 5440000000 is 445.

It can be written as a sum of positive squares in 8 ways, for example, as 4804153344 + 635846656 = 69312^2 + 25216^2 .

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319999992 + ... + 320000008.

It is an arithmetic number, because the mean of its divisors is an integer number (69222141).

Almost surely, 2^5440000000 is an apocalyptic number.

5440000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5440000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7199102664).

5440000000 is an abundant number, since it is smaller than the sum of its proper divisors (8958205328).

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

5440000000 is an frugal number, since it uses more digits than its factorization.

5440000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 24 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 5440000000 is about 73756.3556583431. The cubic root of 5440000000 is about 1758.7318688633.

Adding to 5440000000 its reverse (445), we get a palindrome (5440000445).

The spelling of 5440000000 in words is "five billion, four hundred forty million", and thus it is an aban number.