2780330 has 16 divisors (see below), whose sum is σ = 5719680.
Its totient is φ = 953232.
The previous prime is 2780329. The next prime is 2780339. The reversal of 2780330 is 330872.
2780330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 2780296 and 2780305.
It is not an unprimeable number, because it can be changed into a prime (2780339) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 19790 + ... + 19929.
It is an arithmetic number, because the mean of its divisors is an integer number (357480).
22780330 is an apocalyptic number.
2780330 is an abundant number, since it is smaller than the sum of its proper divisors (2939350).
2780330 is a wasteful number, since it uses less digits than its factorization.
2780330 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 39733.
The product of its (nonzero) digits is 1008, while the sum is 23.
The square root of 2780330 is about 1667.4321575404.
The cubic root of 2780330 is about 140.6151502566.
The spelling of 2780330 in words is "two million, seven hundred eighty thousand, three hundred thirty".