3049805 has 18 divisors (see below), whose sum is σ = 4080174. Its totient is φ = 2186800.

The previous prime is 3049801. The next prime is 3049807. The reversal of 3049805 is 5089403.

3049805 = T₁₁₀₂ + T₁₁₀₃ + ... + T₁₁₀₆.

3049805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2439844 + 609961 = 1562^2 + 781^2 .

It is not a de Polignac number, because 3049805 - 2² = 3049801 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 (3049801) 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 17 ways as a sum of consecutive naturals, for example, 42920 + ... + 42990.

Almost surely, 2^3049805 is an apocalyptic number.

It is an amenable number.

3049805 is a deficient number, since it is larger than the sum of its proper divisors (1030369).

3049805 is an equidigital number, since it uses as much as digits as its factorization.

3049805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3049805 is about 1746.3690904273. The cubic root of 3049805 is about 145.0187054743.

The spelling of 3049805 in words is "three million, forty-nine thousand, eight hundred five".