2065440273 has 16 divisors (see below), whose sum is σ = 3094707840. Its totient is φ = 1215777024.

The previous prime is 2065440241. The next prime is 2065440281. The reversal of 2065440273 is 3720445602.

It is not a de Polignac number, because 2065440273 - 2⁵ = 2065440241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2065442273) 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, 1150408 + ... + 1152201.

It is an arithmetic number, because the mean of its divisors is an integer number (193419240).

Almost surely, 2^2065440273 is an apocalyptic number.

2065440273 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2065440273 is a deficient number, since it is larger than the sum of its proper divisors (1029267567).

2065440273 is a wasteful number, since it uses less digits than its factorization.

2065440273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302648.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 2065440273 is about 45447.1151229646. The cubic root of 2065440273 is about 1273.5154368830.

Adding to 2065440273 its reverse (3720445602), we get a palindrome (5785885875).

The spelling of 2065440273 in words is "two billion, sixty-five million, four hundred forty thousand, two hundred seventy-three".