304236 has 36 divisors (see below), whose sum is σ = 800072. Its totient is φ = 101088.

The previous prime is 304223. The next prime is 304253. The reversal of 304236 is 632403.

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

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

It is a d-powerful number, because it can be written as 3² + 0 + 2⁹ + 4⁶ + 3⁹ + 6⁷ .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 816 + ... + 1128.

2³⁰⁴²³⁶ is an apocalyptic number.

304236 is a gapful number since it is divisible by the number (36) 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 304236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400036).

304236 is an abundant number, since it is smaller than the sum of its proper divisors (495836).

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

304236 is a wasteful number, since it uses less digits than its factorization.

304236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 304236 is about 551.5759240576. The cubic root of 304236 is about 67.2569033326.

Adding to 304236 its reverse (632403), we get a palindrome (936639).

The spelling of 304236 in words is "three hundred four thousand, two hundred thirty-six".