288438 has 8 divisors (see below), whose sum is σ = 576888. Its totient is φ = 96144.

The previous prime is 288433. The next prime is 288461. The reversal of 288438 is 834882.

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

288438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 288399 and 288408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24031 + ... + 24042.

It is an arithmetic number, because the mean of its divisors is an integer number (72111).

2²⁸⁸⁴³⁸ is an apocalyptic number.

288438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

288438 is a wasteful number, since it uses less digits than its factorization.

288438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48078.

The product of its digits is 12288, while the sum is 33.

The square root of 288438 is about 537.0642419674. The cubic root of 288438 is about 66.0720058943.

The spelling of 288438 in words is "two hundred eighty-eight thousand, four hundred thirty-eight".