389812384923240 has 512 divisors, whose sum is σ = 1277896708915200. Its totient is φ = 94830893752320.

The previous prime is 389812384923223. The next prime is 389812384923293. The reversal of 389812384923240 is 42329483218983.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8238292062 + ... + 8238339378.

It is an arithmetic number, because the mean of its divisors is an integer number (2495892009600).

Almost surely, 2^{389812384923240} is an apocalyptic number.

389812384923240 is a gapful number since it is divisible by the number (30) 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 389812384923240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638948354457600).

389812384923240 is an abundant number, since it is smaller than the sum of its proper divisors (888084323991960).

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

389812384923240 is a wasteful number, since it uses less digits than its factorization.

389812384923240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48777 (or 48773 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 66.

The spelling of 389812384923240 in words is "three hundred eighty-nine trillion, eight hundred twelve billion, three hundred eighty-four million, nine hundred twenty-three thousand, two hundred forty".