2090605 has 8 divisors (see below), whose sum is σ = 2736864. Its totient is φ = 1520400.

The previous prime is 2090603. The next prime is 2090623. The reversal of 2090605 is 5060902.

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

It is not a de Polignac number, because 2090605 - 2¹ = 2090603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090603) 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, 18951 + ... + 19060.

It is an arithmetic number, because the mean of its divisors is an integer number (342108).

2^2090605 is an apocalyptic number.

It is an amenable number.

2090605 is a deficient number, since it is larger than the sum of its proper divisors (646259).

2090605 is a wasteful number, since it uses less digits than its factorization.

2090605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38027.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2090605 is about 1445.8924579650. The cubic root of 2090605 is about 127.8666620938.

The spelling of 2090605 in words is "two million, ninety thousand, six hundred five".