30804 has 24 divisors (see below), whose sum is σ = 76608. Its totient is φ = 9600.

The previous prime is 30803. The next prime is 30809. The reversal of 30804 is 40803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30803) 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 7 ways as a sum of consecutive naturals, for example, 129 + ... + 279.

It is an arithmetic number, because the mean of its divisors is an integer number (3192).

2³⁰⁸⁰⁴ is an apocalyptic number.

30804 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38304).

30804 is an abundant number, since it is smaller than the sum of its proper divisors (45804).

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

30804 is a wasteful number, since it uses less digits than its factorization.

30804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 30804 is about 175.5106834355. The cubic root of 30804 is about 31.3474610603.

Subtracting 30804 from its reverse (40803), we obtain a palindrome (9999).

The spelling of 30804 in words is "thirty thousand, eight hundred four".