22031434 has 4 divisors (see below), whose sum is σ = 33047154. Its totient is φ = 11015716.

The previous prime is 22031423. The next prime is 22031459. The reversal of 22031434 is 43413022.

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., 18515809 + 3515625 = 4303^2 + 1875^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5507857 + ... + 5507860.

Almost surely, 2^22031434 is an apocalyptic number.

22031434 is a deficient number, since it is larger than the sum of its proper divisors (11015720).

22031434 is a wasteful number, since it uses less digits than its factorization.

22031434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11015719.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 22031434 is about 4693.7654393887. The cubic root of 22031434 is about 280.3373230471.

Adding to 22031434 its reverse (43413022), we get a palindrome (65444456).

The spelling of 22031434 in words is "twenty-two million, thirty-one thousand, four hundred thirty-four".