288423 has 12 divisors (see below), whose sum is σ = 423280. Its totient is φ = 189216.

The previous prime is 288413. The next prime is 288427. The reversal of 288423 is 324882.

It is not a de Polignac number, because 288423 - 2⁶ = 288359 is a prime.

It is a Duffinian number.

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 288423.

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 11 ways as a sum of consecutive naturals, for example, 438 + ... + 876.

2²⁸⁸⁴²³ is an apocalyptic number.

288423 is a deficient number, since it is larger than the sum of its proper divisors (134857).

288423 is a wasteful number, since it uses less digits than its factorization.

288423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 515 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 288423 is about 537.0502769760. The cubic root of 288423 is about 66.0708605329.

The spelling of 288423 in words is "two hundred eighty-eight thousand, four hundred twenty-three".