280295 has 8 divisors (see below), whose sum is σ = 342240. Its totient is φ = 220320.

The previous prime is 280277. The next prime is 280297. The reversal of 280295 is 592082.

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

It is not a de Polignac number, because 280295 - 2¹⁴ = 263911 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155 + ... + 764.

It is an arithmetic number, because the mean of its divisors is an integer number (42780).

2²⁸⁰²⁹⁵ is an apocalyptic number.

280295 is a deficient number, since it is larger than the sum of its proper divisors (61945).

280295 is an equidigital number, since it uses as much as digits as its factorization.

280295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 280295 is about 529.4289376300. The cubic root of 280295 is about 65.4442934865. Note that the first 3 decimals are identical.

It can be divided in two parts, 280 and 295, that added together give a palindrome (575).

The spelling of 280295 in words is "two hundred eighty thousand, two hundred ninety-five".