288469 has 4 divisors (see below), whose sum is σ = 293260. Its totient is φ = 283680.

The previous prime is 288467. The next prime is 288481. The reversal of 288469 is 964882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964882 = 2 ⋅482441.

It can be written as a sum of positive squares in 2 ways, for example, as 7569 + 280900 = 87^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 288469 - 2¹ = 288467 is a prime.

It is a super-2 number, since 2×288469² = 166428727922, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁸ + 8⁴ + 4 + 8⁴ + 6⁷ + 9² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288461) 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, 2304 + ... + 2425.

It is an arithmetic number, because the mean of its divisors is an integer number (73315).

2²⁸⁸⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

288469 is a deficient number, since it is larger than the sum of its proper divisors (4791).

288469 is an equidigital number, since it uses as much as digits as its factorization.

288469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790.

The product of its digits is 27648, while the sum is 37.

The square root of 288469 is about 537.0931017989. The cubic root of 288469 is about 66.0743728487.

It can be divided in two parts, 288 and 469, that added together give a palindrome (757).

The spelling of 288469 in words is "two hundred eighty-eight thousand, four hundred sixty-nine".