8939730240 has 560 divisors, whose sum is σ = 37618416000. Its totient is φ = 1971744768.

The previous prime is 8939730227. The next prime is 8939730301. The reversal of 8939730240 is 420379398.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5260911 + ... + 5262609.

Almost surely, 2^8939730240 is an apocalyptic number.

8939730240 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 8939730240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18809208000).

8939730240 is an abundant number, since it is smaller than the sum of its proper divisors (28678685760).

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

8939730240 is a wasteful number, since it uses less digits than its factorization.

8939730240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 8939730240 is about 94550.1466947566. The cubic root of 8939730240 is about 2075.4302288822.

The spelling of 8939730240 in words is "eight billion, nine hundred thirty-nine million, seven hundred thirty thousand, two hundred forty".