2605930 has 16 divisors (see below), whose sum is σ = 4966920. Its totient is φ = 980992.

The previous prime is 2605927. The next prime is 2605931. The reversal of 2605930 is 395062.

It can be written as a sum of positive squares in 4 ways, for example, as 1885129 + 720801 = 1373^2 + 849^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2605895 and 2605904.

It is not an unprimeable number, because it can be changed into a prime (2605931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7495 + ... + 7834.

2^2605930 is an apocalyptic number.

2605930 is a deficient number, since it is larger than the sum of its proper divisors (2360990).

2605930 is a wasteful number, since it uses less digits than its factorization.

2605930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15353.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2605930 is about 1614.2893173158. The cubic root of 2605930 is about 137.6113478225.

The spelling of 2605930 in words is "two million, six hundred five thousand, nine hundred thirty".