22124434 has 4 divisors (see below), whose sum is σ = 33186654. Its totient is φ = 11062216.

The previous prime is 22124423. The next prime is 22124437. The reversal of 22124434 is 43442122.

It is a happy number.

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., 19829209 + 2295225 = 4453^2 + 1515^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (22124437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5531107 + ... + 5531110.

Almost surely, 2^22124434 is an apocalyptic number.

22124434 is a deficient number, since it is larger than the sum of its proper divisors (11062220).

22124434 is a wasteful number, since it uses less digits than its factorization.

22124434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11062219.

The product of its digits is 1536, while the sum is 22.

The square root of 22124434 is about 4703.6617650507. The cubic root of 22124434 is about 280.7312264779.

Adding to 22124434 its reverse (43442122), we get a palindrome (65566556).

The spelling of 22124434 in words is "twenty-two million, one hundred twenty-four thousand, four hundred thirty-four".