22045005434 has 4 divisors (see below), whose sum is σ = 33067508154. Its totient is φ = 11022502716.

The previous prime is 22045005427. The next prime is 22045005439. The reversal of 22045005434 is 43450054022.

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., 21198486409 + 846519025 = 145597^2 + 29095^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22045005397 and 22045005406.

It is not an unprimeable number, because it can be changed into a prime (22045005439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511251357 + ... + 5511251360.

Almost surely, 2^22045005434 is an apocalyptic number.

22045005434 is a deficient number, since it is larger than the sum of its proper divisors (11022502720).

22045005434 is a wasteful number, since it uses less digits than its factorization.

22045005434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11022502719.

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 22045005434 its reverse (43450054022), we get a palindrome (65495059456).

The spelling of 22045005434 in words is "twenty-two billion, forty-five million, five thousand, four hundred thirty-four".