280594 has 4 divisors (see below), whose sum is σ = 420894. Its totient is φ = 140296.

The previous prime is 280591. The next prime is 280597. The reversal of 280594 is 495082.

It is a happy number.

280594 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (280591) and next prime (280597).

It can be written as a sum of positive squares in only one way, i.e., 235225 + 45369 = 485^2 + 213^2 .

It is not an unprimeable number, because it can be changed into a prime (280591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70147 + ... + 70150.

2²⁸⁰⁵⁹⁴ is an apocalyptic number.

280594 is a deficient number, since it is larger than the sum of its proper divisors (140300).

280594 is a wasteful number, since it uses less digits than its factorization.

280594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140299.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 280594 is about 529.7112420933. The cubic root of 280594 is about 65.4675557518.

The spelling of 280594 in words is "two hundred eighty thousand, five hundred ninety-four".