2220244445 has 8 divisors (see below), whose sum is σ = 2666166360. Its totient is φ = 1774946880.

The previous prime is 2220244427. The next prime is 2220244451. The reversal of 2220244445 is 5444420222.

It can be written as a sum of positive squares in 4 ways, for example, as 69789316 + 2150455129 = 8354^2 + 46373^2 .

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

It is not a de Polignac number, because 2220244445 - 2²⁶ = 2153135581 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 148226 + ... + 162515.

It is an arithmetic number, because the mean of its divisors is an integer number (333270795).

Almost surely, 2^2220244445 is an apocalyptic number.

It is an amenable number.

2220244445 is a deficient number, since it is larger than the sum of its proper divisors (445921915).

2220244445 is a wasteful number, since it uses less digits than its factorization.

2220244445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312175.

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 2220244445 is about 47119.4699142509. The cubic root of 2220244445 is about 1304.5686286798.

Adding to 2220244445 its reverse (5444420222), we get a palindrome (7664664667).

The spelling of 2220244445 in words is "two billion, two hundred twenty million, two hundred forty-four thousand, four hundred forty-five".