8398339520 has 56 divisors (see below), whose sum is σ = 20078413488. Its totient is φ = 3345920000.

The previous prime is 8398339493. The next prime is 8398339529. The reversal of 8398339520 is 259338938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398339529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28040 + ... + 132600.

It is an arithmetic number, because the mean of its divisors is an integer number (358543098).

Almost surely, 2^8398339520 is an apocalyptic number.

8398339520 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 8398339520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10039206744).

8398339520 is an abundant number, since it is smaller than the sum of its proper divisors (11680073968).

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

8398339520 is a wasteful number, since it uses less digits than its factorization.

8398339520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104829 (or 104819 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 8398339520 is about 91642.4547903427. The cubic root of 8398339520 is about 2032.6587598963.

The spelling of 8398339520 in words is "eight billion, three hundred ninety-eight million, three hundred thirty-nine thousand, five hundred twenty".