280246 has 4 divisors (see below), whose sum is σ = 420372. Its totient is φ = 140122.

The previous prime is 280243. The next prime is 280249. The reversal of 280246 is 642082.

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 (280243) and next prime (280249).

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, 70060 + ... + 70063.

It is an arithmetic number, because the mean of its divisors is an integer number (105093).

2²⁸⁰²⁴⁶ is an apocalyptic number.

280246 is a deficient number, since it is larger than the sum of its proper divisors (140126).

280246 is a wasteful number, since it uses less digits than its factorization.

280246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140125.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 280246 is about 529.3826593307. The cubic root of 280246 is about 65.4404796983.

The spelling of 280246 in words is "two hundred eighty thousand, two hundred forty-six".