2049609 has 8 divisors (see below), whose sum is σ = 2740000. Its totient is φ = 1362816.

The previous prime is 2049589. The next prime is 2049611. The reversal of 2049609 is 9069402.

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

It is not a de Polignac number, because 2049609 - 2⁵ = 2049577 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2049629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017 + ... + 2265.

It is an arithmetic number, because the mean of its divisors is an integer number (342500).

2^2049609 is an apocalyptic number.

It is an amenable number.

2049609 is a deficient number, since it is larger than the sum of its proper divisors (690391).

2049609 is a wasteful number, since it uses less digits than its factorization.

2049609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 2049609 is about 1431.6455566934. The cubic root of 2049609 is about 127.0253323307.

The spelling of 2049609 in words is "two million, forty-nine thousand, six hundred nine".