2220288265 has 8 divisors (see below), whose sum is σ = 2869295688. Its totient is φ = 1639597440.

The previous prime is 2220288241. The next prime is 2220288269. The reversal of 2220288265 is 5628820222.

It can be written as a sum of positive squares in 4 ways, for example, as 1218816 + 2219069449 = 1104^2 + 47107^2 .

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

It is not a de Polignac number, because 2220288265 - 2⁹ = 2220287753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220288269) 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 7 ways as a sum of consecutive naturals, for example, 17079076 + ... + 17079205.

It is an arithmetic number, because the mean of its divisors is an integer number (358661961).

Almost surely, 2^2220288265 is an apocalyptic number.

It is an amenable number.

2220288265 is a deficient number, since it is larger than the sum of its proper divisors (649007423).

2220288265 is a wasteful number, since it uses less digits than its factorization.

2220288265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34158299.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 2220288265 is about 47119.9349002097. The cubic root of 2220288265 is about 1304.5772111914.

The spelling of 2220288265 in words is "two billion, two hundred twenty million, two hundred eighty-eight thousand, two hundred sixty-five".