20220043 has 4 divisors (see below), whose sum is σ = 20229048. Its totient is φ = 20211040.

The previous prime is 20220041. The next prime is 20220049. The reversal of 20220043 is 34002202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20220043 - 2¹ = 20220041 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20220041) 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, 1923 + ... + 6643.

It is an arithmetic number, because the mean of its divisors is an integer number (5057262).

Almost surely, 2^20220043 is an apocalyptic number.

20220043 is a deficient number, since it is larger than the sum of its proper divisors (9005).

20220043 is an equidigital number, since it uses as much as digits as its factorization.

20220043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9004.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 20220043 is about 4496.6702125017. The cubic root of 20220043 is about 272.4336139943.

Adding to 20220043 its reverse (34002202), we get a palindrome (54222245).

The spelling of 20220043 in words is "twenty million, two hundred twenty thousand, forty-three".