2605634 has 8 divisors (see below), whose sum is σ = 3920700. Its totient is φ = 1298736.

The previous prime is 2605627. The next prime is 2605637. The reversal of 2605634 is 4365062.

It can be written as a sum of positive squares in 2 ways, for example, as 2550409 + 55225 = 1597^2 + 235^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2605637) 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, 1169 + ... + 2564.

2^2605634 is an apocalyptic number.

2605634 is a deficient number, since it is larger than the sum of its proper divisors (1315066).

2605634 is a wasteful number, since it uses less digits than its factorization.

2605634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2605634 is about 1614.1976335009. The cubic root of 2605634 is about 137.6061373344.

The spelling of 2605634 in words is "two million, six hundred five thousand, six hundred thirty-four".