280204 has 6 divisors (see below), whose sum is σ = 490364. Its totient is φ = 140100.

The previous prime is 280199. The next prime is 280207. The reversal of 280204 is 402082.

280204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (280207) by changing a digit.

280204 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 35022 + ... + 35029.

2²⁸⁰²⁰⁴ is an apocalyptic number.

It is an amenable number.

280204 is a deficient number, since it is larger than the sum of its proper divisors (210160).

280204 is a wasteful number, since it uses less digits than its factorization.

280204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70055 (or 70053 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 280204 is about 529.3429889967. The cubic root of 280204 is about 65.4372103832.

Adding to 280204 its reverse (402082), we get a palindrome (682286).

It can be divided in two parts, 280 and 204, that added together give a palindrome (484).

The spelling of 280204 in words is "two hundred eighty thousand, two hundred four".