1805012 has 12 divisors (see below), whose sum is σ = 3446016. Its totient is φ = 820440.

The previous prime is 1805003. The next prime is 1805039. The reversal of 1805012 is 2105081.

It is a congruent number.

It is an unprimeable number.

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, 20468 + ... + 20555.

It is an arithmetic number, because the mean of its divisors is an integer number (287168).

2^1805012 is an apocalyptic number.

It is an amenable number.

1805012 is a deficient number, since it is larger than the sum of its proper divisors (1641004).

1805012 is a wasteful number, since it uses less digits than its factorization.

1805012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41038 (or 41036 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1805012 is about 1343.5073501846. The cubic root of 1805012 is about 121.7568389723.

The spelling of 1805012 in words is "one million, eight hundred five thousand, twelve".