2030845 has 4 divisors (see below), whose sum is σ = 2437020. Its totient is φ = 1624672.

The previous prime is 2030789. The next prime is 2030879. The reversal of 2030845 is 5480302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1572516 + 458329 = 1254^2 + 677^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030845 - 2¹⁵ = 1998077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203080 + ... + 203089.

It is an arithmetic number, because the mean of its divisors is an integer number (609255).

2^2030845 is an apocalyptic number.

It is an amenable number.

2030845 is a deficient number, since it is larger than the sum of its proper divisors (406175).

2030845 is an equidigital number, since it uses as much as digits as its factorization.

2030845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406174.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2030845 is about 1425.0771908918. The cubic root of 2030845 is about 126.6365079015.

The spelling of 2030845 in words is "two million, thirty thousand, eight hundred forty-five".