280602 has 48 divisors (see below), whose sum is σ = 741312. Its totient is φ = 74880.

The previous prime is 280597. The next prime is 280603. The reversal of 280602 is 206082.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280602.

It is not an unprimeable number, because it can be changed into a prime (280603) by changing a digit.

280602 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2077 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (15444).

2²⁸⁰⁶⁰² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370656).

280602 is an abundant number, since it is smaller than the sum of its proper divisors (460710).

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

280602 is a wasteful number, since it uses less digits than its factorization.

280602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 280602 is about 529.7187933234. The cubic root of 280602 is about 65.4681779265.

Adding to 280602 its reverse (206082), we get a palindrome (486684).

The spelling of 280602 in words is "two hundred eighty thousand, six hundred two".