8859939840 has 176 divisors, whose sum is σ = 31487117760. Its totient is φ = 2362613760.

The previous prime is 8859939839. The next prime is 8859939853. The reversal of 8859939840 is 489399588.

8859939840 is a `hidden beast` number, since 8 + 8 + 599 + 39 + 8 + 4 + 0 = 666.

It is a super-4 number, since 4×8859939840⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106195 + ... + 170285.

Almost surely, 2^8859939840 is an apocalyptic number.

8859939840 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 8859939840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15743558880).

8859939840 is an abundant number, since it is smaller than the sum of its proper divisors (22627177920).

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

8859939840 is a wasteful number, since it uses less digits than its factorization.

8859939840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64125 (or 64101 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The square root of 8859939840 is about 94127.2534391608. The cubic root of 8859939840 is about 2069.2371059751.

The spelling of 8859939840 in words is "eight billion, eight hundred fifty-nine million, nine hundred thirty-nine thousand, eight hundred forty".