8318519440 has 160 divisors (see below), whose sum is σ = 24291373824. Its totient is φ = 2573598720.

The previous prime is 8318519401. The next prime is 8318519477. The reversal of 8318519440 is 449158138.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 838992 + ... + 848848.

Almost surely, 2^8318519440 is an apocalyptic number.

8318519440 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 8318519440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12145686912).

8318519440 is an abundant number, since it is smaller than the sum of its proper divisors (15972854384).

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

8318519440 is a wasteful number, since it uses less digits than its factorization.

8318519440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025 (or 10019 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 8318519440 is about 91205.9177904592. The cubic root of 8318519440 is about 2026.1986047338.

The spelling of 8318519440 in words is "eight billion, three hundred eighteen million, five hundred nineteen thousand, four hundred forty".