3049645 has 4 divisors (see below), whose sum is σ = 3659580. Its totient is φ = 2439712.

The previous prime is 3049643. The next prime is 3049649. The reversal of 3049645 is 5469403.

3049645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5469403 = 103 ⋅53101.

It can be written as a sum of positive squares in 2 ways, for example, as 405769 + 2643876 = 637^2 + 1626^2 .

It is a cyclic number.

It is not a de Polignac number, because 3049645 - 2¹ = 3049643 is a prime.

It is a super-3 number, since 3×3049645³ = 85088156971752033375, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3049643) 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 3 ways as a sum of consecutive naturals, for example, 304960 + ... + 304969.

It is an arithmetic number, because the mean of its divisors is an integer number (914895).

Almost surely, 2^3049645 is an apocalyptic number.

It is an amenable number.

3049645 is a deficient number, since it is larger than the sum of its proper divisors (609935).

3049645 is an equidigital number, since it uses as much as digits as its factorization.

3049645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609934.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3049645 is about 1746.3232804953. The cubic root of 3049645 is about 145.0161694216.

The spelling of 3049645 in words is "three million, forty-nine thousand, six hundred forty-five".