2306605 has 16 divisors (see below), whose sum is σ = 3219840.
Its totient is φ = 1553472.
The previous prime is 2306597. The next prime is 2306621. The reversal of 2306605 is 5066032.
It is a cyclic number.
It is not a de Polignac number, because 2306605 - 23 = 2306597 is a prime.
It is a congruent number.
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, 1507 + ... + 2623.
It is an arithmetic number, because the mean of its divisors is an integer number (201240).
22306605 is an apocalyptic number.
It is an amenable number.
2306605 is a deficient number, since it is larger than the sum of its proper divisors (913235).
2306605 is a wasteful number, since it uses less digits than its factorization.
2306605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1188.
The product of its (nonzero) digits is 1080, while the sum is 22.
The square root of 2306605 is about 1518.7511316868.
The cubic root of 2306605 is about 132.1268485251.
The spelling of 2306605 in words is "two million, three hundred six thousand, six hundred five".