8005590920 has 16 divisors (see below), whose sum is σ = 18012579660. Its totient is φ = 3202236352.

The previous prime is 8005590893. The next prime is 8005590937. The reversal of 8005590920 is 290955008.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7490210116 + 515380804 = 86546^2 + 22702^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100069847 + ... + 100069926.

Almost surely, 2^8005590920 is an apocalyptic number.

It is an amenable number.

8005590920 is an abundant number, since it is smaller than the sum of its proper divisors (10006988740).

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

8005590920 is a wasteful number, since it uses less digits than its factorization.

8005590920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200139784 (or 200139780 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 8005590920 is about 89473.9678342254. The cubic root of 8005590920 is about 2000.4658015061.

The spelling of 8005590920 in words is "eight billion, five million, five hundred ninety thousand, nine hundred twenty".