8384394240 has 528 divisors, whose sum is σ = 31544892288. Its totient is φ = 2131329024.

The previous prime is 8384394229. The next prime is 8384394289. The reversal of 8384394240 is 424934838.

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 47 ways as a sum of consecutive naturals, for example, 28615534 + ... + 28615826.

Almost surely, 2^8384394240 is an apocalyptic number.

8384394240 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 8384394240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15772446144).

8384394240 is an abundant number, since it is smaller than the sum of its proper divisors (23160498048).

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

8384394240 is a wasteful number, since it uses less digits than its factorization.

8384394240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 8384394240 is about 91566.3379195652. The cubic root of 8384394240 is about 2031.5330731143.

The spelling of 8384394240 in words is "eight billion, three hundred eighty-four million, three hundred ninety-four thousand, two hundred forty".