845044 has 12 divisors (see below), whose sum is σ = 1556800. Its totient is φ = 400248.

The previous prime is 845041. The next prime is 845069. The reversal of 845044 is 440548.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845041) by changing a digit.

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, 5484 + ... + 5635.

2⁸⁴⁵⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

845044 is a deficient number, since it is larger than the sum of its proper divisors (711756).

845044 is a wasteful number, since it uses less digits than its factorization.

845044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11142 (or 11140 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 845044 is about 919.2627480759. The cubic root of 845044 is about 94.5423603748.

Subtracting from 845044 its reverse (440548), we obtain a square (404496 = 636²).

The spelling of 845044 in words is "eight hundred forty-five thousand, forty-four".