288398 has 8 divisors (see below), whose sum is σ = 471960. Its totient is φ = 131080.

The previous prime is 288389. The next prime is 288403. The reversal of 288398 is 893882.

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 inconsummate number, since it does not exist a number n which divided by its sum of digits gives 288398.

It is an unprimeable number.

288398 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 3 ways as a sum of consecutive naturals, for example, 6533 + ... + 6576.

It is an arithmetic number, because the mean of its divisors is an integer number (58995).

2²⁸⁸³⁹⁸ is an apocalyptic number.

288398 is a deficient number, since it is larger than the sum of its proper divisors (183562).

288398 is a wasteful number, since it uses less digits than its factorization.

288398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13122.

The product of its digits is 27648, while the sum is 38.

The square root of 288398 is about 537.0270011834. The cubic root of 288398 is about 66.0689515089.

It can be divided in two parts, 288 and 398, that added together give a palindrome (686).

The spelling of 288398 in words is "two hundred eighty-eight thousand, three hundred ninety-eight".