280244 has 6 divisors (see below), whose sum is σ = 490434. Its totient is φ = 140120.

The previous prime is 280243. The next prime is 280249. The reversal of 280244 is 442082.

280244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 211600 + 68644 = 460^2 + 262^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35027 + ... + 35034.

It is an arithmetic number, because the mean of its divisors is an integer number (81739).

2²⁸⁰²⁴⁴ is an apocalyptic number.

It is an amenable number.

280244 is a deficient number, since it is larger than the sum of its proper divisors (210190).

280244 is a wasteful number, since it uses less digits than its factorization.

280244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70065 (or 70063 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 280244 is about 529.3807703345. The cubic root of 280244 is about 65.4403240240.

The spelling of 280244 in words is "two hundred eighty thousand, two hundred forty-four".