22008874 has 4 divisors (see below), whose sum is σ = 33013314. Its totient is φ = 11004436.

The previous prime is 22008871. The next prime is 22008893. The reversal of 22008874 is 47880022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47880022 = 2 ⋅23940011.

It can be written as a sum of positive squares in only one way, i.e., 21298225 + 710649 = 4615^2 + 843^2 .

It is not an unprimeable number, because it can be changed into a prime (22008871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5502217 + ... + 5502220.

Almost surely, 2^22008874 is an apocalyptic number.

22008874 is a deficient number, since it is larger than the sum of its proper divisors (11004440).

22008874 is a wasteful number, since it uses less digits than its factorization.

22008874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11004439.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 22008874 is about 4691.3616360285. The cubic root of 22008874 is about 280.2416026936.

Adding to 22008874 its reverse (47880022), we get a palindrome (69888896).

The spelling of 22008874 in words is "twenty-two million, eight thousand, eight hundred seventy-four".