280235 has 8 divisors (see below), whose sum is σ = 344736. Its totient is φ = 218560.

The previous prime is 280229. The next prime is 280243. The reversal of 280235 is 532082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 280235 - 2⁴ = 280219 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479 + ... + 888.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2²⁸⁰²³⁵ is an apocalyptic number.

280235 is a deficient number, since it is larger than the sum of its proper divisors (64501).

280235 is a wasteful number, since it uses less digits than its factorization.

280235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 280235 is about 529.3722697686. The cubic root of 280235 is about 65.4396234807.

It can be divided in two parts, 280 and 235, that added together give a palindrome (515).

The spelling of 280235 in words is "two hundred eighty thousand, two hundred thirty-five".