4005580 has 48 divisors (see below), whose sum is σ = 9031680. Its totient is φ = 1487808.

The previous prime is 4005553. The next prime is 4005613. The reversal of 4005580 is 855004.

It is a happy number.

It is a super-3 number, since 3×4005580³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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, 31477 + ... + 31603.

It is an arithmetic number, because the mean of its divisors is an integer number (188160).

Almost surely, 2^4005580 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 4005580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4515840).

4005580 is an abundant number, since it is smaller than the sum of its proper divisors (5026100).

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

4005580 is a wasteful number, since it uses less digits than its factorization.

4005580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 4005580 is about 2001.3945138328. The cubic root of 4005580 is about 158.8138850487.

The spelling of 4005580 in words is "four million, five thousand, five hundred eighty".