288922 has 4 divisors (see below), whose sum is σ = 433386. Its totient is φ = 144460.

The previous prime is 288913. The next prime is 288929. The reversal of 288922 is 229882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 229882 = 2 ⋅114941.

It can be written as a sum of positive squares in only one way, i.e., 221841 + 67081 = 471^2 + 259^2 .

It is a plaindrome in base 16.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (288929) by changing a digit.

288922 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72229 + ... + 72232.

2²⁸⁸⁹²² is an apocalyptic number.

288922 is a deficient number, since it is larger than the sum of its proper divisors (144464).

288922 is a wasteful number, since it uses less digits than its factorization.

288922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144463.

The product of its digits is 4608, while the sum is 31.

The square root of 288922 is about 537.5146509631. The cubic root of 288922 is about 66.1089415970.

The spelling of 288922 in words is "two hundred eighty-eight thousand, nine hundred twenty-two".