4089858 has 16 divisors (see below), whose sum is σ = 8207136. Its totient is φ = 1358720.

The previous prime is 4089853. The next prime is 4089871. The reversal of 4089858 is 8589804.

It is not an unprimeable number, because it can be changed into a prime (4089853) 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, 1153 + ... + 3083.

It is an arithmetic number, because the mean of its divisors is an integer number (512946).

Almost surely, 2^4089858 is an apocalyptic number.

4089858 is an abundant number, since it is smaller than the sum of its proper divisors (4117278).

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

4089858 is a wasteful number, since it uses less digits than its factorization.

4089858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 4089858 is about 2022.3397340704. The cubic root of 4089858 is about 159.9199860344.

It can be divided in two parts, 40 and 89858, that added together give a palindrome (89898).

The spelling of 4089858 in words is "four million, eighty-nine thousand, eight hundred fifty-eight".