22424474 has 4 divisors (see below), whose sum is σ = 33636714. Its totient is φ = 11212236.

The previous prime is 22424429. The next prime is 22424489. The reversal of 22424474 is 47442422.

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

It can be written as a sum of positive squares in only one way, i.e., 18983449 + 3441025 = 4357^2 + 1855^2 .

It is an unprimeable number.

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, 5606117 + ... + 5606120.

Almost surely, 2^22424474 is an apocalyptic number.

22424474 is a deficient number, since it is larger than the sum of its proper divisors (11212240).

22424474 is a wasteful number, since it uses less digits than its factorization.

22424474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11212239.

The product of its digits is 14336, while the sum is 29.

The square root of 22424474 is about 4735.4486587862. The cubic root of 22424474 is about 281.9945759566.

Adding to 22424474 its reverse (47442422), we get a palindrome (69866896).

The spelling of 22424474 in words is "twenty-two million, four hundred twenty-four thousand, four hundred seventy-four".