4085580 has 48 divisors (see below), whose sum is σ = 11541600. Its totient is φ = 1079808.

The previous prime is 4085579. The next prime is 4085603. The reversal of 4085580 is 855804.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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, 8712 + ... + 9168.

It is an arithmetic number, because the mean of its divisors is an integer number (240450).

Almost surely, 2^4085580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4085580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5770800).

4085580 is an abundant number, since it is smaller than the sum of its proper divisors (7456020).

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

4085580 is a wasteful number, since it uses less digits than its factorization.

4085580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 4085580 is about 2021.2817715499. The cubic root of 4085580 is about 159.8642077021.

The spelling of 4085580 in words is "four million, eighty-five thousand, five hundred eighty".