22949 has 4 divisors (see below), whose sum is σ = 23436. Its totient is φ = 22464.

The previous prime is 22943. The next prime is 22961. The reversal of 22949 is 94922.

22949 is nontrivially palindromic in base 8.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9025 + 13924 = 95^2 + 118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22949 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22943) 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, 164 + ... + 269.

It is an arithmetic number, because the mean of its divisors is an integer number (5859).

2²²⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

22949 is a deficient number, since it is larger than the sum of its proper divisors (487).

22949 is an equidigital number, since it uses as much as digits as its factorization.

22949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its digits is 1296, while the sum is 26.

The square root of 22949 is about 151.4892735477. The cubic root of 22949 is about 28.4176343565.

The spelling of 22949 in words is "twenty-two thousand, nine hundred forty-nine".