4065945946 has 16 divisors (see below), whose sum is σ = 6132724128. Its totient is φ = 2021720400.

The previous prime is 4065945941. The next prime is 4065945953. The reversal of 4065945946 is 6495495604.

It is a junction number, because it is equal to n+sod(n) for n = 4065945893 and 4065945902.

It is not an unprimeable number, because it can be changed into a prime (4065945941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659896 + ... + 666028.

It is an arithmetic number, because the mean of its divisors is an integer number (383295258).

Almost surely, 2^4065945946 is an apocalyptic number.

4065945946 is a deficient number, since it is larger than the sum of its proper divisors (2066778182).

4065945946 is a wasteful number, since it uses less digits than its factorization.

4065945946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7917.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The square root of 4065945946 is about 63764.7704143910. The cubic root of 4065945946 is about 1596.0771013709.

The spelling of 4065945946 in words is "four billion, sixty-five million, nine hundred forty-five thousand, nine hundred forty-six".