22045843 has 4 divisors (see below), whose sum is σ = 22061448. Its totient is φ = 22030240.

The previous prime is 22045841. The next prime is 22045853. The reversal of 22045843 is 34854022.

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

It is a cyclic number.

It is not a de Polignac number, because 22045843 - 2¹ = 22045841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22045841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5446 + ... + 8587.

It is an arithmetic number, because the mean of its divisors is an integer number (5515362).

Almost surely, 2^22045843 is an apocalyptic number.

22045843 is a deficient number, since it is larger than the sum of its proper divisors (15605).

22045843 is a wasteful number, since it uses less digits than its factorization.

22045843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15604.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 22045843 is about 4695.3000969054. The cubic root of 22045843 is about 280.3984251402.

Adding to 22045843 its reverse (34854022), we get a palindrome (56899865).

The spelling of 22045843 in words is "twenty-two million, forty-five thousand, eight hundred forty-three".