8198232240 has 160 divisors (see below), whose sum is σ = 28930576896. Its totient is φ = 1901025280.

The previous prime is 8198232149. The next prime is 8198232247. The reversal of 8198232240 is 422328918.

It is a super-2 number, since 2×8198232240² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8198232247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6789 + ... + 128228.

Almost surely, 2^8198232240 is an apocalyptic number.

8198232240 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 8198232240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14465288448).

8198232240 is an abundant number, since it is smaller than the sum of its proper divisors (20732344656).

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

8198232240 is a wasteful number, since it uses less digits than its factorization.

8198232240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135067 (or 135061 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 8198232240 is about 90544.0900335301. The cubic root of 8198232240 is about 2016.3847566534.

The spelling of 8198232240 in words is "eight billion, one hundred ninety-eight million, two hundred thirty-two thousand, two hundred forty".