288426 has 16 divisors (see below), whose sum is σ = 588384. Its totient is φ = 94224.

The previous prime is 288413. The next prime is 288427. The reversal of 288426 is 624882.

It is a happy number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 288393 and 288402.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 288426.

It is not an unprimeable number, because it can be changed into a prime (288427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136 + ... + 771.

It is an arithmetic number, because the mean of its divisors is an integer number (36774).

2²⁸⁸⁴²⁶ is an apocalyptic number.

288426 is an abundant number, since it is smaller than the sum of its proper divisors (299958).

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

288426 is a wasteful number, since it uses less digits than its factorization.

288426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its digits is 6144, while the sum is 30.

The square root of 288426 is about 537.0530700033. The cubic root of 288426 is about 66.0710896083.

Subtracting from 288426 its product of digits (6144), we obtain a palindrome (282282).

The spelling of 288426 in words is "two hundred eighty-eight thousand, four hundred twenty-six".