220040443 has 16 divisors (see below), whose sum is σ = 259140544. Its totient is φ = 182891520.

The previous prime is 220040437. The next prime is 220040453. The reversal of 220040443 is 344040022.

It is not a de Polignac number, because 220040443 - 2²⁵ = 186486011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220040443.

It is not an unprimeable number, because it can be changed into a prime (220040423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86023 + ... + 88543.

It is an arithmetic number, because the mean of its divisors is an integer number (16196284).

Almost surely, 2^220040443 is an apocalyptic number.

220040443 is a deficient number, since it is larger than the sum of its proper divisors (39100101).

220040443 is a wasteful number, since it uses less digits than its factorization.

220040443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 220040443 is about 14833.7602447930. The cubic root of 220040443 is about 603.7180633430.

Adding to 220040443 its reverse (344040022), we get a palindrome (564080465).

The spelling of 220040443 in words is "two hundred twenty million, forty thousand, four hundred forty-three".