4065020 has 24 divisors (see below), whose sum is σ = 8908704. Its totient is φ = 1555136.

The previous prime is 4065013. The next prime is 4065029. The reversal of 4065020 is 205604.

It is a self number, because there is not a number n which added to its sum of digits gives 4065020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065029) 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, 3959 + ... + 4878.

It is an arithmetic number, because the mean of its divisors is an integer number (371196).

Almost surely, 2^4065020 is an apocalyptic number.

It is an amenable number.

4065020 is an abundant number, since it is smaller than the sum of its proper divisors (4843684).

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

4065020 is a wasteful number, since it uses less digits than its factorization.

4065020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8869 (or 8867 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 4065020 is about 2016.1894752230. The cubic root of 4065020 is about 159.5955932896.

The spelling of 4065020 in words is "four million, sixty-five thousand, twenty".