2442220065 has 80 divisors (see below), whose sum is σ = 4551584400. Its totient is φ = 1251307008.

The previous prime is 2442220061. The next prime is 2442220069. The reversal of 2442220065 is 5600222442.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2442220061) and next prime (2442220069).

It can be written as a sum of positive squares in 8 ways, for example, as 749062161 + 1693157904 = 27369^2 + 41148^2 .

It is not a de Polignac number, because 2442220065 - 2² = 2442220061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2442220061) 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 79 ways as a sum of consecutive naturals, for example, 3159019 + ... + 3159791.

It is an arithmetic number, because the mean of its divisors is an integer number (56894805).

Almost surely, 2^2442220065 is an apocalyptic number.

It is an amenable number.

2442220065 is a deficient number, since it is larger than the sum of its proper divisors (2109364335).

2442220065 is a wasteful number, since it uses less digits than its factorization.

2442220065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2442220065 is about 49418.8229827462. The cubic root of 2442220065 is about 1346.6712805436.

The spelling of 2442220065 in words is "two billion, four hundred forty-two million, two hundred twenty thousand, sixty-five".