288636 has 24 divisors (see below), whose sum is σ = 685440. Its totient is φ = 94512.

The previous prime is 288583. The next prime is 288647. The reversal of 288636 is 636882.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 288597 and 288606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625 + ... + 983.

It is an arithmetic number, because the mean of its divisors is an integer number (28560).

2²⁸⁸⁶³⁶ is an apocalyptic number.

It is an amenable number.

288636 is an abundant number, since it is smaller than the sum of its proper divisors (396804).

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

288636 is a wasteful number, since it uses less digits than its factorization.

288636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 431 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 288636 is about 537.2485458333. The cubic root of 288636 is about 66.0871209448.

The spelling of 288636 in words is "two hundred eighty-eight thousand, six hundred thirty-six".