2220543445 has 8 divisors (see below), whose sum is σ = 2666056536. Its totient is φ = 1775498496.

The previous prime is 2220543443. The next prime is 2220543449. The reversal of 2220543445 is 5443450222.

2220543445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1101841636 + 1118701809 = 33194^2 + 33447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2220543445 - 2¹ = 2220543443 is a prime.

It is a super-2 number, since 2×2220543445² = 9861626382264936050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220543443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106512 + ... + 125641.

It is an arithmetic number, because the mean of its divisors is an integer number (333257067).

Almost surely, 2^2220543445 is an apocalyptic number.

It is an amenable number.

2220543445 is a deficient number, since it is larger than the sum of its proper divisors (445513091).

2220543445 is a wasteful number, since it uses less digits than its factorization.

2220543445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234071.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 2220543445 is about 47122.6425935558. The cubic root of 2220543445 is about 1304.6271880743.

Adding to 2220543445 its reverse (5443450222), we get a palindrome (7663993667).

The spelling of 2220543445 in words is "two billion, two hundred twenty million, five hundred forty-three thousand, four hundred forty-five".