2705830 has 8 divisors (see below), whose sum is σ = 4870512. Its totient is φ = 1082328.

The previous prime is 2705827. The next prime is 2705831. The reversal of 2705830 is 385072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2705795 and 2705804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2705831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135282 + ... + 135301.

It is an arithmetic number, because the mean of its divisors is an integer number (608814).

2^2705830 is an apocalyptic number.

2705830 is a deficient number, since it is larger than the sum of its proper divisors (2164682).

2705830 is a wasteful number, since it uses less digits than its factorization.

2705830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270590.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2705830 is about 1644.9407284155. The cubic root of 2705830 is about 139.3478168950.

The spelling of 2705830 in words is "two million, seven hundred five thousand, eight hundred thirty".