22189274 has 4 divisors (see below), whose sum is σ = 33283914. Its totient is φ = 11094636.

The previous prime is 22189253. The next prime is 22189291. The reversal of 22189274 is 47298122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47298122 = 2 ⋅23649061.

It can be written as a sum of positive squares in only one way, i.e., 20187049 + 2002225 = 4493^2 + 1415^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5547317 + ... + 5547320.

Almost surely, 2^22189274 is an apocalyptic number.

22189274 is a deficient number, since it is larger than the sum of its proper divisors (11094640).

22189274 is a wasteful number, since it uses less digits than its factorization.

22189274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11094639.

The product of its digits is 16128, while the sum is 35.

The square root of 22189274 is about 4710.5492248781. The cubic root of 22189274 is about 281.0052050048.

The spelling of 22189274 in words is "twenty-two million, one hundred eighty-nine thousand, two hundred seventy-four".