22000043 has 8 divisors (see below), whose sum is σ = 24939600. Its totient is φ = 19238688.

The previous prime is 22000037. The next prime is 22000061. The reversal of 22000043 is 34000022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22000043 - 2⁸ = 21999787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21999988 and 22000033.

It is not an unprimeable number, because it can be changed into a prime (22000003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44288 + ... + 44781.

It is an arithmetic number, because the mean of its divisors is an integer number (3117450).

Almost surely, 2^22000043 is an apocalyptic number.

22000043 is a deficient number, since it is larger than the sum of its proper divisors (2939557).

22000043 is a wasteful number, since it uses less digits than its factorization.

22000043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89101.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 22000043 is about 4690.4203436366. The cubic root of 22000043 is about 280.2041156225.

Adding to 22000043 its reverse (34000022), we get a palindrome (56000065).

The spelling of 22000043 in words is "twenty-two million, forty-three", and thus it is an aban number and an uban number.