210204 has 18 divisors (see below), whose sum is σ = 531440. Its totient is φ = 70056.

The previous prime is 210193. The next prime is 210209. The reversal of 210204 is 402012.

210204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210209) by changing a digit.

210204 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2884 + ... + 2955.

2²¹⁰²⁰⁴ is an apocalyptic number.

It is an amenable number.

210204 is an abundant number, since it is smaller than the sum of its proper divisors (321236).

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

210204 is a wasteful number, since it uses less digits than its factorization.

210204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849 (or 5844 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 210204 is about 458.4800977142. The cubic root of 210204 is about 59.4584602840.

Adding to 210204 its reverse (402012), we get a palindrome (612216).

It can be divided in two parts, 210 and 204, that added together give a palindrome (414).

The spelling of 210204 in words is "two hundred ten thousand, two hundred four", and thus it is an iban number.