1800846 has 16 divisors (see below), whose sum is σ = 4002000. Its totient is φ = 600264.

The previous prime is 1800833. The next prime is 1800853. The reversal of 1800846 is 6480081.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 7 ways as a sum of consecutive naturals, for example, 16621 + ... + 16728.

It is an arithmetic number, because the mean of its divisors is an integer number (250125).

2^1800846 is an apocalyptic number.

1800846 is an abundant number, since it is smaller than the sum of its proper divisors (2201154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1800846 is a wasteful number, since it uses less digits than its factorization.

1800846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33360 (or 33354 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1800846 is about 1341.9560350473. The cubic root of 1800846 is about 121.6630944928.

The spelling of 1800846 in words is "one million, eight hundred thousand, eight hundred forty-six".