8199000040 has 128 divisors (see below), whose sum is σ = 24352876800. Its totient is φ = 2405191680.

The previous prime is 8198999993. The next prime is 8199000041. The reversal of 8199000040 is 400009918.

It is a junction number, because it is equal to n+sod(n) for n = 8198999966 and 8199000011.

It is not an unprimeable number, because it can be changed into a prime (8199000041) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 25935 + ... + 130654.

It is an arithmetic number, because the mean of its divisors is an integer number (190256850).

Almost surely, 2^8199000040 is an apocalyptic number.

It is an amenable number.

8199000040 is an abundant number, since it is smaller than the sum of its proper divisors (16153876760).

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

8199000040 is a wasteful number, since it uses less digits than its factorization.

8199000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156635 (or 156631 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 8199000040 is about 90548.3298575959. The cubic root of 8199000040 is about 2016.4477024138.

Adding to 8199000040 its reverse (400009918), we get a palindrome (8599009958).

The spelling of 8199000040 in words is "eight billion, one hundred ninety-nine million, forty", and thus it is an aban number.