4089285 has 40 divisors (see below), whose sum is σ = 7666560. Its totient is φ = 2081376.

The previous prime is 4089271. The next prime is 4089287. The reversal of 4089285 is 5829804.

It is not a de Polignac number, because 4089285 - 2⁴ = 4089269 is a prime.

It is a super-2 number, since 2×4089285² = 33444503622450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089287) 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 39 ways as a sum of consecutive naturals, for example, 9096 + ... + 9534.

It is an arithmetic number, because the mean of its divisors is an integer number (191664).

Almost surely, 2^4089285 is an apocalyptic number.

4089285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4089285 is a deficient number, since it is larger than the sum of its proper divisors (3577275).

4089285 is a wasteful number, since it uses less digits than its factorization.

4089285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 4089285 is about 2022.1980615162. The cubic root of 4089285 is about 159.9125172802.

The spelling of 4089285 in words is "four million, eighty-nine thousand, two hundred eighty-five".