2065440306 has 32 divisors (see below), whose sum is σ = 4190204160. Its totient is φ = 678622464.

The previous prime is 2065440301. The next prime is 2065440323. The reversal of 2065440306 is 6030445602.

It is not an unprimeable number, because it can be changed into a prime (2065440301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306186 + ... + 312858.

It is an arithmetic number, because the mean of its divisors is an integer number (130943880).

Almost surely, 2^2065440306 is an apocalyptic number.

2065440306 is an abundant number, since it is smaller than the sum of its proper divisors (2124763854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2065440306 is a wasteful number, since it uses less digits than its factorization.

2065440306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 2065440306 is about 45447.1154860240. The cubic root of 2065440306 is about 1273.5154436654.

Adding to 2065440306 its reverse (6030445602), we get a palindrome (8095885908).

The spelling of 2065440306 in words is "two billion, sixty-five million, four hundred forty thousand, three hundred six".