384566 has 16 divisors (see below), whose sum is σ = 710304. Its totient is φ = 152064.

The previous prime is 384547. The next prime is 384577. The reversal of 384566 is 665483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875 + ... + 1238.

It is an arithmetic number, because the mean of its divisors is an integer number (44394).

2³⁸⁴⁵⁶⁶ is an apocalyptic number.

384566 is a deficient number, since it is larger than the sum of its proper divisors (325738).

384566 is a wasteful number, since it uses less digits than its factorization.

384566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135.

The product of its digits is 17280, while the sum is 32.

The square root of 384566 is about 620.1338565181. The cubic root of 384566 is about 72.7205176491.

The spelling of 384566 in words is "three hundred eighty-four thousand, five hundred sixty-six".