9339839840 has 48 divisors (see below), whose sum is σ = 22376178720. Its totient is φ = 3683312640.

The previous prime is 9339839833. The next prime is 9339839843. The reversal of 9339839840 is 489389339.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9339839843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399725 + ... + 422444.

It is an arithmetic number, because the mean of its divisors is an integer number (466170390).

Almost surely, 2^9339839840 is an apocalyptic number.

It is an amenable number.

9339839840 is an abundant number, since it is smaller than the sum of its proper divisors (13036338880).

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

9339839840 is a wasteful number, since it uses less digits than its factorization.

9339839840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822255 (or 822247 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 56.

The square root of 9339839840 is about 96642.8468123741. The cubic root of 9339839840 is about 2105.9423407605.

The spelling of 9339839840 in words is "nine billion, three hundred thirty-nine million, eight hundred thirty-nine thousand, eight hundred forty".