280338 has 8 divisors (see below), whose sum is σ = 560688. Its totient is φ = 93444.

The previous prime is 280337. The next prime is 280339. The reversal of 280338 is 833082.

It is an interprime number because it is at equal distance from previous prime (280337) and next prime (280339).

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

280338 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280338.

It is not an unprimeable number, because it can be changed into a prime (280337) 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, 23356 + ... + 23367.

It is an arithmetic number, because the mean of its divisors is an integer number (70086).

2²⁸⁰³³⁸ is an apocalyptic number.

280338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

280338 is a wasteful number, since it uses less digits than its factorization.

280338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46728.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 280338 is about 529.4695458664. The cubic root of 280338 is about 65.4476399140.

The spelling of 280338 in words is "two hundred eighty thousand, three hundred thirty-eight".