384660 has 36 divisors (see below), whose sum is σ = 1167348. Its totient is φ = 102528.

The previous prime is 384641. The next prime is 384673. The reversal of 384660 is 66483.

It can be written as a sum of positive squares in 2 ways, for example, as 66564 + 318096 = 258^2 + 564^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

384660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 11 ways as a sum of consecutive naturals, for example, 889 + ... + 1248.

2³⁸⁴⁶⁶⁰ is an apocalyptic number.

384660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384660 is an abundant number, since it is smaller than the sum of its proper divisors (782688).

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

384660 is a wasteful number, since it uses less digits than its factorization.

384660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152 (or 2147 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 384660 is about 620.2096419760. The cubic root of 384660 is about 72.7264422254.

The spelling of 384660 in words is "three hundred eighty-four thousand, six hundred sixty".