288860 has 48 divisors (see below), whose sum is σ = 719712. Its totient is φ = 96000.

The previous prime is 288853. The next prime is 288877. The reversal of 288860 is 68882.

288860 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

288860 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 15 ways as a sum of consecutive naturals, for example, 2810 + ... + 2910.

It is an arithmetic number, because the mean of its divisors is an integer number (14994).

2²⁸⁸⁸⁶⁰ is an apocalyptic number.

288860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359856).

288860 is an abundant number, since it is smaller than the sum of its proper divisors (430852).

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

288860 is a wasteful number, since it uses less digits than its factorization.

288860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 288860 is about 537.4569750222. The cubic root of 288860 is about 66.1042124687.

It can be divided in two parts, 28 and 8860, that added together give a palindrome (8888).

The spelling of 288860 in words is "two hundred eighty-eight thousand, eight hundred sixty".