2680650 has 144 divisors (see below), whose sum is σ = 8820864. Its totient is φ = 570240.

The previous prime is 2680631. The next prime is 2680661. The reversal of 2680650 is 560862.

2680650 is a `hidden beast` number, since 2 + 6 + 8 + 0 + 650 = 666.

2680650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 72432 + ... + 72468.

It is an arithmetic number, because the mean of its divisors is an integer number (61256).

2^2680650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2680650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4410432).

2680650 is an abundant number, since it is smaller than the sum of its proper divisors (6140214).

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

2680650 is a wasteful number, since it uses less digits than its factorization.

2680650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 77 counting only the distinct ones).

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

The square root of 2680650 is about 1637.2690676856. The cubic root of 2680650 is about 138.9142199723.

The spelling of 2680650 in words is "two million, six hundred eighty thousand, six hundred fifty".