22030643 has 4 divisors (see below), whose sum is σ = 22091040. Its totient is φ = 21970248.

The previous prime is 22030637. The next prime is 22030649. The reversal of 22030643 is 34603022.

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

It is an interprime number because it is at equal distance from previous prime (22030637) and next prime (22030649).

It is a cyclic number.

It is not a de Polignac number, because 22030643 - 2⁶ = 22030579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22030649) 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, 29648 + ... + 30381.

It is an arithmetic number, because the mean of its divisors is an integer number (5522760).

Almost surely, 2^22030643 is an apocalyptic number.

22030643 is a deficient number, since it is larger than the sum of its proper divisors (60397).

22030643 is an equidigital number, since it uses as much as digits as its factorization.

22030643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60396.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 22030643 is about 4693.6811779242. The cubic root of 22030643 is about 280.3339680003. Note that the first 3 decimals are identical.

Adding to 22030643 its reverse (34603022), we get a palindrome (56633665).

The spelling of 22030643 in words is "twenty-two million, thirty thousand, six hundred forty-three".