8197916040 has 384 divisors, whose sum is σ = 28933632000. Its totient is φ = 2084963328.

The previous prime is 8197916029. The next prime is 8197916099. The reversal of 8197916040 is 406197918.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35798646 + ... + 35798874.

It is an arithmetic number, because the mean of its divisors is an integer number (75348000).

Almost surely, 2^8197916040 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 8197916040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14466816000).

8197916040 is an abundant number, since it is smaller than the sum of its proper divisors (20735715960).

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

8197916040 is a wasteful number, since it uses less digits than its factorization.

8197916040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 8197916040 is about 90542.3439060421. The cubic root of 8197916040 is about 2016.3588328103.

The spelling of 8197916040 in words is "eight billion, one hundred ninety-seven million, nine hundred sixteen thousand, forty".