220243045 has 16 divisors (see below), whose sum is σ = 289795968. Its totient is φ = 159355840.

The previous prime is 220243043. The next prime is 220243057. The reversal of 220243045 is 540342022.

It is not a de Polignac number, because 220243045 - 2¹ = 220243043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220243043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672 + ... + 20998.

It is an arithmetic number, because the mean of its divisors is an integer number (18112248).

Almost surely, 2^220243045 is an apocalyptic number.

It is an amenable number.

220243045 is a deficient number, since it is larger than the sum of its proper divisors (69552923).

220243045 is a wasteful number, since it uses less digits than its factorization.

220243045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20540.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 220243045 is about 14840.5877579023. The cubic root of 220243045 is about 603.9032974213.

Adding to 220243045 its reverse (540342022), we get a palindrome (760585067).

The spelling of 220243045 in words is "two hundred twenty million, two hundred forty-three thousand, forty-five".