8523967240 has 64 divisors (see below), whose sum is σ = 19764984960. Its totient is φ = 3306401280.

The previous prime is 8523967237. The next prime is 8523967253. The reversal of 8523967240 is 427693258.

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, 258319 + ... + 289441.

It is an arithmetic number, because the mean of its divisors is an integer number (308827890).

Almost surely, 2^8523967240 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 8523967240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9882492480).

8523967240 is an abundant number, since it is smaller than the sum of its proper divisors (11241017720).

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

8523967240 is a wasteful number, since it uses less digits than its factorization.

8523967240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31342 (or 31338 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 8523967240 is about 92325.3336847477. Note that the first 3 decimals coincide. The cubic root of 8523967240 is about 2042.7439079259.

The spelling of 8523967240 in words is "eight billion, five hundred twenty-three million, nine hundred sixty-seven thousand, two hundred forty".