288406 has 4 divisors (see below), whose sum is σ = 432612. Its totient is φ = 144202.

The previous prime is 288403. The next prime is 288413. The reversal of 288406 is 604882.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72100 + ... + 72103.

It is an arithmetic number, because the mean of its divisors is an integer number (108153).

2²⁸⁸⁴⁰⁶ is an apocalyptic number.

288406 is a deficient number, since it is larger than the sum of its proper divisors (144206).

288406 is a wasteful number, since it uses less digits than its factorization.

288406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144205.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 288406 is about 537.0344495468. The cubic root of 288406 is about 66.0695624086.

The spelling of 288406 in words is "two hundred eighty-eight thousand, four hundred six".