280800275 has 12 divisors (see below), whose sum is σ = 397934352. Its totient is φ = 192548640.

The previous prime is 280800257. The next prime is 280800287. The reversal of 280800275 is 572008082.

It is not a de Polignac number, because 280800275 - 2¹⁶ = 280734739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 802112 + ... + 802461.

It is an arithmetic number, because the mean of its divisors is an integer number (33161196).

Almost surely, 2^280800275 is an apocalyptic number.

280800275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

280800275 is a deficient number, since it is larger than the sum of its proper divisors (117134077).

280800275 is a wasteful number, since it uses less digits than its factorization.

280800275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604590 (or 1604585 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 280800275 is about 16757.0962580037. The cubic root of 280800275 is about 654.8359436066.

The spelling of 280800275 in words is "two hundred eighty million, eight hundred thousand, two hundred seventy-five".