2678305 has 16 divisors (see below), whose sum is σ = 3738240. Its totient is φ = 1804032.

The previous prime is 2678251. The next prime is 2678311. The reversal of 2678305 is 5038762.

It is a cyclic number.

It is not a de Polignac number, because 2678305 - 2⁷ = 2678177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1417 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (233640).

2^2678305 is an apocalyptic number.

It is an amenable number.

2678305 is a deficient number, since it is larger than the sum of its proper divisors (1059935).

2678305 is a wasteful number, since it uses less digits than its factorization.

2678305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2678305 is about 1636.5527794728. The cubic root of 2678305 is about 138.8737013319.

The spelling of 2678305 in words is "two million, six hundred seventy-eight thousand, three hundred five".