384323520 has 112 divisors (see below), whose sum is σ = 1394569728. Its totient is φ = 87843840.

The previous prime is 384323503. The next prime is 384323521. The reversal of 384323520 is 25323483.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384323521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21876 + ... + 35315.

Almost surely, 2^384323520 is an apocalyptic number.

384323520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384323520 is an abundant number, since it is smaller than the sum of its proper divisors (1010246208).

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

384323520 is a wasteful number, since it uses less digits than its factorization.

384323520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57218 (or 57208 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 384323520 is about 19604.1709847675. The cubic root of 384323520 is about 727.0523030483.

The spelling of 384323520 in words is "three hundred eighty-four million, three hundred twenty-three thousand, five hundred twenty".