2730816 has 84 divisors (see below), whose sum is σ = 8558784. Its totient is φ = 825600.

The previous prime is 2730811. The next prime is 2730817. The reversal of 2730816 is 6180372.

It is a self number, because there is not a number n which added to its sum of digits gives 2730816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2730811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6121 + ... + 6551.

2^2730816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2730816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4279392).

2730816 is an abundant number, since it is smaller than the sum of its proper divisors (5827968).

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

2730816 is a wasteful number, since it uses less digits than its factorization.

2730816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 447 counting only the distinct ones).

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

The square root of 2730816 is about 1652.5180785698. The cubic root of 2730816 is about 139.7754222544.

The spelling of 2730816 in words is "two million, seven hundred thirty thousand, eight hundred sixteen".