2049845 has 8 divisors (see below), whose sum is σ = 2811264. Its totient is φ = 1405584.

The previous prime is 2049823. The next prime is 2049847. The reversal of 2049845 is 5489402.

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

It is a cyclic number.

It is not a de Polignac number, because 2049845 - 2⁸ = 2049589 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 (2049847) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29249 + ... + 29318.

It is an arithmetic number, because the mean of its divisors is an integer number (351408).

2^2049845 is an apocalyptic number.

It is an amenable number.

2049845 is a deficient number, since it is larger than the sum of its proper divisors (761419).

2049845 is an equidigital number, since it uses as much as digits as its factorization.

2049845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58579.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2049845 is about 1431.7279769565. The cubic root of 2049845 is about 127.0302075415.

The spelling of 2049845 in words is "two million, forty-nine thousand, eight hundred forty-five".