2065590 has 48 divisors (see below), whose sum is σ = 5475600. Its totient is φ = 540096.

The previous prime is 2065579. The next prime is 2065597. The reversal of 2065590 is 955602.

2065590 is a `hidden beast` number, since 2 + 0 + 655 + 9 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065597) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5116 + ... + 5504.

It is an arithmetic number, because the mean of its divisors is an integer number (114075).

2^2065590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2065590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2737800).

2065590 is an abundant number, since it is smaller than the sum of its proper divisors (3410010).

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

2065590 is a wasteful number, since it uses less digits than its factorization.

With its successor (2065591) it forms an eRAP, since the sums of their prime factors are consecutive (461 and 462).

2065590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 2065590 is about 1437.2160589139. The cubic root of 2065590 is about 127.3546209182.

The spelling of 2065590 in words is "two million, sixty-five thousand, five hundred ninety".