384534 has 16 divisors (see below), whose sum is σ = 854640. Its totient is φ = 128160.

The previous prime is 384533. The next prime is 384547. The reversal of 384534 is 435483.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 384498 and 384507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3507 + ... + 3614.

It is an arithmetic number, because the mean of its divisors is an integer number (53415).

2³⁸⁴⁵³⁴ is an apocalyptic number.

384534 is an abundant number, since it is smaller than the sum of its proper divisors (470106).

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

384534 is a wasteful number, since it uses less digits than its factorization.

384534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132 (or 7126 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 384534 is about 620.1080551001. The cubic root of 384534 is about 72.7185005518.

The spelling of 384534 in words is "three hundred eighty-four thousand, five hundred thirty-four".