22574 has 4 divisors (see below), whose sum is σ = 33864. Its totient is φ = 11286.

The previous prime is 22573. The next prime is 22613. The reversal of 22574 is 47522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47522 = 2 ⋅23761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642 + ... + 5645.

It is an arithmetic number, because the mean of its divisors is an integer number (8466).

2²²⁵⁷⁴ is an apocalyptic number.

22574 is a deficient number, since it is larger than the sum of its proper divisors (11290).

22574 is a wasteful number, since it uses less digits than its factorization.

22574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11289.

The product of its digits is 560, while the sum is 20.

The square root of 22574 is about 150.2464641847. The cubic root of 22574 is about 28.2619966277.

The spelling of 22574 in words is "twenty-two thousand, five hundred seventy-four".