8399925990 has 40 divisors (see below), whose sum is σ = 22586469840. Its totient is φ = 2239980048.

The previous prime is 8399925971. The next prime is 8399926001. The reversal of 8399925990 is 995299938.

8399925990 is a `hidden beast` number, since 8 + 39 + 9 + 9 + 2 + 599 + 0 = 666.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 5184330 + ... + 5185949.

It is an arithmetic number, because the mean of its divisors is an integer number (564661746).

Almost surely, 2^8399925990 is an apocalyptic number.

8399925990 is an abundant number, since it is smaller than the sum of its proper divisors (14186543850).

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

8399925990 is a wasteful number, since it uses less digits than its factorization.

8399925990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10370298 (or 10370289 counting only the distinct ones).

The product of its (nonzero) digits is 14171760, while the sum is 63.

The square root of 8399925990 is about 91651.1101405760. The cubic root of 8399925990 is about 2032.7867434936.

The spelling of 8399925990 in words is "eight billion, three hundred ninety-nine million, nine hundred twenty-five thousand, nine hundred ninety".