22298 has 4 divisors (see below), whose sum is σ = 33450. Its totient is φ = 11148.

The previous prime is 22291. The next prime is 22303. The reversal of 22298 is 89222.

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

It can be written as a sum of positive squares in only one way, i.e., 20449 + 1849 = 143^2 + 43^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (22291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5573 + ... + 5576.

2²²²⁹⁸ is an apocalyptic number.

22298 is a deficient number, since it is larger than the sum of its proper divisors (11152).

22298 is a wasteful number, since it uses less digits than its factorization.

22298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11151.

The product of its digits is 576, while the sum is 23.

The square root of 22298 is about 149.3251485852. The cubic root of 22298 is about 28.1463426478.

It can be divided in two parts, 22 and 298, that multiplied together give a palindrome (6556).

The spelling of 22298 in words is "twenty-two thousand, two hundred ninety-eight".