384506 has 16 divisors (see below), whose sum is σ = 627264. Its totient is φ = 176064.

The previous prime is 384497. The next prime is 384509. The reversal of 384506 is 605483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331 + ... + 1593.

It is an arithmetic number, because the mean of its divisors is an integer number (39204).

2³⁸⁴⁵⁰⁶ is an apocalyptic number.

384506 is a deficient number, since it is larger than the sum of its proper divisors (242758).

384506 is a wasteful number, since it uses less digits than its factorization.

384506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 384506 is about 620.0854779786. The cubic root of 384506 is about 72.7167354999.

Multiplying 384506 by its sum of digits (26), we get a triangular number (9997156 = T₄₄₇₁).

Adding to 384506 its reverse (605483), we get a palindrome (989989).

The spelling of 384506 in words is "three hundred eighty-four thousand, five hundred six".