280970 has 8 divisors (see below), whose sum is σ = 505764. Its totient is φ = 112384.

The previous prime is 280967. The next prime is 280979. The reversal of 280970 is 79082.

It can be written as a sum of positive squares in 2 ways, for example, as 229441 + 51529 = 479^2 + 227^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280970.

It is not an unprimeable number, because it can be changed into a prime (280979) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 14039 + ... + 14058.

2²⁸⁰⁹⁷⁰ is an apocalyptic number.

280970 is a deficient number, since it is larger than the sum of its proper divisors (224794).

280970 is a wasteful number, since it uses less digits than its factorization.

280970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28104.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 280970 is about 530.0660336222. The cubic root of 280970 is about 65.4967851888.

The spelling of 280970 in words is "two hundred eighty thousand, nine hundred seventy".