4085538 has 16 divisors (see below), whose sum is σ = 8247360. Its totient is φ = 1349136.

The previous prime is 4085537. The next prime is 4085539. The reversal of 4085538 is 8355804.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4085537) and next prime (4085539).

It is a junction number, because it is equal to n+sod(n) for n = 4085499 and 4085508.

It is not an unprimeable number, because it can be changed into a prime (4085531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2470 + ... + 3777.

It is an arithmetic number, because the mean of its divisors is an integer number (515460).

Almost surely, 2^4085538 is an apocalyptic number.

4085538 is an abundant number, since it is smaller than the sum of its proper divisors (4161822).

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

4085538 is a wasteful number, since it uses less digits than its factorization.

4085538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 4085538 is about 2021.2713820761. The cubic root of 4085538 is about 159.8636598958.

The spelling of 4085538 in words is "four million, eighty-five thousand, five hundred thirty-eight".