3042845 has 16 divisors (see below), whose sum is σ = 3969840. Its totient is φ = 2238912.

The previous prime is 3042839. The next prime is 3042857. The reversal of 3042845 is 5482403.

3042845 = 41² + 42² + ... + 209².

It can be written as a sum of positive squares in 8 ways, for example, as 2699449 + 343396 = 1643^2 + 586^2 .

It is not a de Polignac number, because 3042845 - 2⁴ = 3042829 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10847 + ... + 11123.

It is an arithmetic number, because the mean of its divisors is an integer number (248115).

Almost surely, 2^3042845 is an apocalyptic number.

It is an amenable number.

3042845 is a deficient number, since it is larger than the sum of its proper divisors (926995).

3042845 is an equidigital number, since it uses as much as digits as its factorization.

3042845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 3042845 is about 1744.3752463275. The cubic root of 3042845 is about 144.9083050862.

It can be divided in two parts, 30 and 42845, that added together give a cube (42875 = 35³).

The spelling of 3042845 in words is "three million, forty-two thousand, eight hundred forty-five".