30204 has 18 divisors (see below), whose sum is σ = 76440. Its totient is φ = 10056.

The previous prime is 30203. The next prime is 30211. The reversal of 30204 is 40203.

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 (30203) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 384 + ... + 455.

2³⁰²⁰⁴ is an apocalyptic number.

It is an amenable number.

30204 is an abundant number, since it is smaller than the sum of its proper divisors (46236).

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

30204 is a wasteful number, since it uses less digits than its factorization.

30204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 30204 is about 173.7929802955. The cubic root of 30204 is about 31.1425966207.

Adding to 30204 its reverse (40203), we get a palindrome (70407).

Subtracting 30204 from its reverse (40203), we obtain a palindrome (9999).

The spelling of 30204 in words is "thirty thousand, two hundred four".