2605860 has 72 divisors (see below), whose sum is σ = 8176896. Its totient is φ = 671040.

The previous prime is 2605849. The next prime is 2605871. The reversal of 2605860 is 685062.

It is an interprime number because it is at equal distance from previous prime (2605849) and next prime (2605871).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5347 + ... + 5813.

It is an arithmetic number, because the mean of its divisors is an integer number (113568).

2^2605860 is an apocalyptic number.

2605860 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 2605860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4088448).

2605860 is an abundant number, since it is smaller than the sum of its proper divisors (5571036).

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

2605860 is a wasteful number, since it uses less digits than its factorization.

2605860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2605860 is about 1614.2676358027. The cubic root of 2605860 is about 137.6101156481.

The spelling of 2605860 in words is "two million, six hundred five thousand, eight hundred sixty".