5306711440 has 80 divisors (see below), whose sum is σ = 12829893120. Its totient is φ = 2039086080.

The previous prime is 5306711413. The next prime is 5306711453. The reversal of 5306711440 is 441176035.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×5306711440² = 56322372614853747200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 331951 + ... + 347569.

It is an arithmetic number, because the mean of its divisors is an integer number (160373664).

Almost surely, 2^5306711440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5306711440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6414946560).

5306711440 is an abundant number, since it is smaller than the sum of its proper divisors (7523181680).

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

5306711440 is a wasteful number, since it uses less digits than its factorization.

5306711440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15800 (or 15794 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 5306711440 is about 72847.1786687721. The cubic root of 5306711440 is about 1744.2490333293.

Adding to 5306711440 its reverse (441176035), we get a palindrome (5747887475).

The spelling of 5306711440 in words is "five billion, three hundred six million, seven hundred eleven thousand, four hundred forty".