2220240545 has 16 divisors (see below), whose sum is σ = 2823102720. Its totient is φ = 1670471424.

The previous prime is 2220240509. The next prime is 2220240563. The reversal of 2220240545 is 5450420222.

It is a cyclic number.

It is not a de Polignac number, because 2220240545 - 2²⁶ = 2153131681 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 115064 + ... + 132966.

It is an arithmetic number, because the mean of its divisors is an integer number (176443920).

Almost surely, 2^2220240545 is an apocalyptic number.

It is an amenable number.

2220240545 is a deficient number, since it is larger than the sum of its proper divisors (602862175).

2220240545 is a wasteful number, since it uses less digits than its factorization.

2220240545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19384.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 2220240545 is about 47119.4285300660. The cubic root of 2220240545 is about 1304.5678648269.

Adding to 2220240545 its reverse (5450420222), we get a palindrome (7670660767).

The spelling of 2220240545 in words is "two billion, two hundred twenty million, two hundred forty thousand, five hundred forty-five".