220544041 has 4 divisors (see below), whose sum is σ = 221864832. Its totient is φ = 219223252.

The previous prime is 220544017. The next prime is 220544057. The reversal of 220544041 is 140445022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220544041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220544011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660145 + ... + 660478.

It is an arithmetic number, because the mean of its divisors is an integer number (55466208).

Almost surely, 2^220544041 is an apocalyptic number.

It is an amenable number.

220544041 is a deficient number, since it is larger than the sum of its proper divisors (1320791).

220544041 is a wasteful number, since it uses less digits than its factorization.

220544041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320790.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 220544041 is about 14850.7252684844. The cubic root of 220544041 is about 604.1782811074.

Adding to 220544041 its reverse (140445022), we get a palindrome (360989063).

The spelling of 220544041 in words is "two hundred twenty million, five hundred forty-four thousand, forty-one".