4020835 has 16 divisors (see below), whose sum is σ = 5939136. Its totient is φ = 2544768.

The previous prime is 4020833. The next prime is 4020847. The reversal of 4020835 is 5380204.

It is a cyclic number.

It is not a de Polignac number, because 4020835 - 2¹ = 4020833 is a prime.

It is a super-3 number, since 3×4020835³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (4020833) 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 15 ways as a sum of consecutive naturals, for example, 3964 + ... + 4873.

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

Almost surely, 2^4020835 is an apocalyptic number.

4020835 is a deficient number, since it is larger than the sum of its proper divisors (1918301).

4020835 is a wasteful number, since it uses less digits than its factorization.

4020835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8862.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4020835 is about 2005.2019848384. The cubic root of 4020835 is about 159.0152405522.

The spelling of 4020835 in words is "four million, twenty thousand, eight hundred thirty-five".