22274 has 16 divisors (see below), whose sum is σ = 40128. Its totient is φ = 9072.

The previous prime is 22273. The next prime is 22277. The reversal of 22274 is 47222.

22274 = 22² + 23² + ... + 42².

It is a super-2 number, since 2×22274² = 992262152, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 9 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497 + ... + 539.

It is an arithmetic number, because the mean of its divisors is an integer number (2508).

2²²²⁷⁴ is an apocalyptic number.

22274 is a deficient number, since it is larger than the sum of its proper divisors (17854).

22274 is a wasteful number, since it uses less digits than its factorization.

22274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89.

The product of its digits is 224, while the sum is 17.

The square root of 22274 is about 149.2447654023. The cubic root of 22274 is about 28.1362407743.

Adding to 22274 its reverse (47222), we get a palindrome (69496).

The spelling of 22274 in words is "twenty-two thousand, two hundred seventy-four", and thus it is an iban number.