8339445240 has 192 divisors, whose sum is σ = 29253312000. Its totient is φ = 1896314112.

The previous prime is 8339445239. The next prime is 8339445341. The reversal of 8339445240 is 425449338.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 8339445192 and 8339445201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1166557 + ... + 1173683.

It is an arithmetic number, because the mean of its divisors is an integer number (152361000).

Almost surely, 2^8339445240 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 8339445240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14626656000).

8339445240 is an abundant number, since it is smaller than the sum of its proper divisors (20913866760).

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

8339445240 is a wasteful number, since it uses less digits than its factorization.

8339445240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354 (or 7343 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 8339445240 is about 91320.5630731655. The cubic root of 8339445240 is about 2027.8961954112.

The spelling of 8339445240 in words is "eight billion, three hundred thirty-nine million, four hundred forty-five thousand, two hundred forty".