2681730 has 48 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 704544.

The previous prime is 2681729. The next prime is 2681803. The reversal of 2681730 is 371862.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2681694 and 2681703.

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, 7291 + ... + 7649.

It is an arithmetic number, because the mean of its divisors is an integer number (147420).

2^2681730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2681730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3538080).

2681730 is an abundant number, since it is smaller than the sum of its proper divisors (4394430).

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

2681730 is a wasteful number, since it uses less digits than its factorization.

2681730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2681730 is about 1637.5988519781. The cubic root of 2681730 is about 138.9328730619.

The spelling of 2681730 in words is "two million, six hundred eighty-one thousand, seven hundred thirty".