2065650 has 48 divisors (see below), whose sum is σ = 5249664. Its totient is φ = 537280.

The previous prime is 2065639. The next prime is 2065663. The reversal of 2065650 is 565602.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2065650.

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, 6904 + ... + 7196.

It is an arithmetic number, because the mean of its divisors is an integer number (109368).

2^2065650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2065650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2624832).

2065650 is an abundant number, since it is smaller than the sum of its proper divisors (3184014).

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

2065650 is a wasteful number, since it uses less digits than its factorization.

2065650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2065650 is about 1437.2369324506. The cubic root of 2065650 is about 127.3558540128.

It can be divided in two parts, 20656 and 50, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 2065650 in words is "two million, sixty-five thousand, six hundred fifty".