22598 has 4 divisors (see below), whose sum is σ = 33900. Its totient is φ = 11298.

The previous prime is 22573. The next prime is 22613. The reversal of 22598 is 89522.

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

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

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 22598.

It is an unprimeable number.

22598 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, 5648 + ... + 5651.

It is an arithmetic number, because the mean of its divisors is an integer number (8475).

2²²⁵⁹⁸ is an apocalyptic number.

22598 is a deficient number, since it is larger than the sum of its proper divisors (11302).

22598 is a wasteful number, since it uses less digits than its factorization.

22598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11301.

The product of its digits is 1440, while the sum is 26.

The square root of 22598 is about 150.3263117355. The cubic root of 22598 is about 28.2720088495.

It can be divided in two parts, 225 and 98, that added together give a palindrome (323).

The spelling of 22598 in words is "twenty-two thousand, five hundred ninety-eight".