2005860 has 48 divisors (see below), whose sum is σ = 5689152. Its totient is φ = 528000.

The previous prime is 2005859. The next prime is 2005873. The reversal of 2005860 is 685002.

It is a happy number.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5895 + ... + 6225.

It is an arithmetic number, because the mean of its divisors is an integer number (118524).

2^2005860 is an apocalyptic number.

2005860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2005860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2844576).

2005860 is an abundant number, since it is smaller than the sum of its proper divisors (3683292).

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

2005860 is a wasteful number, since it uses less digits than its factorization.

2005860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2005860 is about 1416.2838698510. The cubic root of 2005860 is about 126.1150372929.

The spelling of 2005860 in words is "two million, five thousand, eight hundred sixty".