384534720 has 84 divisors (see below), whose sum is σ = 1322649120. Its totient is φ = 102541824.

The previous prime is 384534707. The next prime is 384534721. The reversal of 384534720 is 27435483.

It is a happy number.

384534720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (384534721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63880 + ... + 69639.

Almost surely, 2^384534720 is an apocalyptic number.

384534720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384534720 is an abundant number, since it is smaller than the sum of its proper divisors (938114400).

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

384534720 is a wasteful number, since it uses less digits than its factorization.

384534720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133542 (or 133529 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 384534720 is about 19609.5568537384. The cubic root of 384534720 is about 727.1854593773.

The spelling of 384534720 in words is "three hundred eighty-four million, five hundred thirty-four thousand, seven hundred twenty".