8639841348 has 240 divisors, whose sum is σ = 25044096000. Its totient is φ = 2585068992.

The previous prime is 8639841347. The next prime is 8639841383. The reversal of 8639841348 is 8431489368.

It is a super-2 number, since 2×8639841348² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 8639841294 and 8639841303.

It is not an unprimeable number, because it can be changed into a prime (8639841347) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 19680513 + ... + 19680951.

It is an arithmetic number, because the mean of its divisors is an integer number (104350400).

Almost surely, 2^8639841348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8639841348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12522048000).

8639841348 is an abundant number, since it is smaller than the sum of its proper divisors (16404254652).

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

8639841348 is a wasteful number, since it uses less digits than its factorization.

8639841348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 625 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 8639841348 is about 92950.7468931799. The cubic root of 8639841348 is about 2051.9585761618.

The spelling of 8639841348 in words is "eight billion, six hundred thirty-nine million, eight hundred forty-one thousand, three hundred forty-eight".