288140 has 12 divisors (see below), whose sum is σ = 605136. Its totient is φ = 115248.

The previous prime is 288137. The next prime is 288179. The reversal of 288140 is 41882.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 288140.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7184 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (50428).

2²⁸⁸¹⁴⁰ is an apocalyptic number.

288140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

288140 is an abundant number, since it is smaller than the sum of its proper divisors (316996).

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

288140 is a wasteful number, since it uses less digits than its factorization.

288140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14416 (or 14414 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 288140 is about 536.7867360507. The cubic root of 288140 is about 66.0492439346.

The spelling of 288140 in words is "two hundred eighty-eight thousand, one hundred forty".