5308536640 has 168 divisors, whose sum is σ = 14031029088. Its totient is φ = 1897205760.

The previous prime is 5308536581. The next prime is 5308536661. The reversal of 5308536640 is 466358035.

It is a super-2 number, since 2×5308536640² = 56361122516444979200, which contains 22 as substring.

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 = 5308536593 and 5308536602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18757939 + ... + 18758221.

Almost surely, 2^5308536640 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 5308536640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7015514544).

5308536640 is an abundant number, since it is smaller than the sum of its proper divisors (8722492448).

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

5308536640 is a wasteful number, since it uses less digits than its factorization.

5308536640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 5308536640 is about 72859.7051874354. The cubic root of 5308536640 is about 1744.4489838039.

The spelling of 5308536640 in words is "five billion, three hundred eight million, five hundred thirty-six thousand, six hundred forty".