2605266 has 12 divisors (see below), whose sum is σ = 5644782. Its totient is φ = 868416.

The previous prime is 2605259. The next prime is 2605289. The reversal of 2605266 is 6625062.

It can be written as a sum of positive squares in only one way, i.e., 2576025 + 29241 = 1605^2 + 171^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72351 + ... + 72386.

2^2605266 is an apocalyptic number.

2605266 is an abundant number, since it is smaller than the sum of its proper divisors (3039516).

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

2605266 is a wasteful number, since it uses less digits than its factorization.

2605266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144745 (or 144742 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2605266 is about 1614.0836409554. The cubic root of 2605266 is about 137.5996588801.

The spelling of 2605266 in words is "two million, six hundred five thousand, two hundred sixty-six".