201384 has 24 divisors (see below), whose sum is σ = 545610. Its totient is φ = 67104.

The previous prime is 201359. The next prime is 201389. The reversal of 201384 is 483102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 152100 + 49284 = 390^2 + 222^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (201389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1327 + ... + 1470.

2²⁰¹³⁸⁴ is an apocalyptic number.

201384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201384 is an abundant number, since it is smaller than the sum of its proper divisors (344226).

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

201384 is a wasteful number, since it uses less digits than its factorization.

201384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809 (or 2802 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 201384 is about 448.7582868316. The cubic root of 201384 is about 58.6149394829.

Adding to 201384 its reverse (483102), we get a palindrome (684486).

It can be divided in two parts, 201 and 384, that added together give a palindrome (585).

The spelling of 201384 in words is "two hundred one thousand, three hundred eighty-four".