22006043 has 4 divisors (see below), whose sum is σ = 22044120. Its totient is φ = 21967968.

The previous prime is 22006037. The next prime is 22006057. The reversal of 22006043 is 34060022.

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 22006043 - 2⁶ = 22005979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22006093) 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, 18158 + ... + 19331.

It is an arithmetic number, because the mean of its divisors is an integer number (5511030).

Almost surely, 2^22006043 is an apocalyptic number.

22006043 is a deficient number, since it is larger than the sum of its proper divisors (38077).

22006043 is an equidigital number, since it uses as much as digits as its factorization.

22006043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38076.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22006043 is about 4691.0599015574. The cubic root of 22006043 is about 280.2295863588.

Adding to 22006043 its reverse (34060022), we get a palindrome (56066065).

The spelling of 22006043 in words is "twenty-two million, six thousand, forty-three".