8713308240 has 640 divisors, whose sum is σ = 37400939520. Its totient is φ = 1815478272.

The previous prime is 8713308203. The next prime is 8713308281. The reversal of 8713308240 is 428033178.

8713308240 is a `hidden beast` number, since 87 + 1 + 330 + 8 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8713308195 and 8713308204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19066092 + ... + 19066548.

It is an arithmetic number, because the mean of its divisors is an integer number (58438968).

Almost surely, 2^8713308240 is an apocalyptic number.

8713308240 is a gapful number since it is divisible by the number (80) 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 8713308240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18700469760).

8713308240 is an abundant number, since it is smaller than the sum of its proper divisors (28687631280).

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

8713308240 is a wasteful number, since it uses less digits than its factorization.

8713308240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 8713308240 is about 93345.1029245777. The cubic root of 8713308240 is about 2057.7582865995.

The spelling of 8713308240 in words is "eight billion, seven hundred thirteen million, three hundred eight thousand, two hundred forty".