288394 has 8 divisors (see below), whose sum is σ = 443268. Its totient is φ = 140640.

The previous prime is 288389. The next prime is 288403. The reversal of 288394 is 493882.

It can be written as a sum of positive squares in 2 ways, for example, as 288369 + 25 = 537^2 + 5^2 .

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

It is a plaindrome in base 16.

It is a congruent number.

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, 1677 + ... + 1840.

2²⁸⁸³⁹⁴ is an apocalyptic number.

288394 is a deficient number, since it is larger than the sum of its proper divisors (154874).

288394 is a wasteful number, since it uses less digits than its factorization.

288394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560.

The product of its digits is 13824, while the sum is 34.

The square root of 288394 is about 537.0232769629. The cubic root of 288394 is about 66.0686460549.

The spelling of 288394 in words is "two hundred eighty-eight thousand, three hundred ninety-four".