4085019 has 16 divisors (see below), whose sum is σ = 6371200. Its totient is φ = 2579688.

The previous prime is 4084999. The next prime is 4085033. The reversal of 4085019 is 9105804.

It is not a de Polignac number, because 4085019 - 2⁷ = 4084891 is a prime.

It is a super-2 number, since 2×4085019² = 33374760460722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4084983 and 4085001.

It is not an unprimeable number, because it can be changed into a prime (4085069) 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, 3469 + ... + 4494.

It is an arithmetic number, because the mean of its divisors is an integer number (398200).

Almost surely, 2^4085019 is an apocalyptic number.

4085019 is a deficient number, since it is larger than the sum of its proper divisors (2286181).

4085019 is a wasteful number, since it uses less digits than its factorization.

4085019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991 (or 7985 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 4085019 is about 2021.1429934569. The cubic root of 4085019 is about 159.8568902649.

The spelling of 4085019 in words is "four million, eighty-five thousand, nineteen".