280108 has 12 divisors (see below), whose sum is σ = 493920. Its totient is φ = 138992.

The previous prime is 280103. The next prime is 280121. The reversal of 280108 is 801082.

It is a happy number.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (280103) 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, 810 + ... + 1102.

It is an arithmetic number, because the mean of its divisors is an integer number (41160).

2²⁸⁰¹⁰⁸ is an apocalyptic number.

It is an amenable number.

280108 is a deficient number, since it is larger than the sum of its proper divisors (213812).

280108 is a wasteful number, since it uses less digits than its factorization.

280108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 280108 is about 529.2523027820. The cubic root of 280108 is about 65.4297364359.

The spelling of 280108 in words is "two hundred eighty thousand, one hundred eight".