918844 has 6 divisors (see below), whose sum is σ = 1607984. Its totient is φ = 459420.

The previous prime is 918839. The next prime is 918857. The reversal of 918844 is 448819.

It is a congruent number.

It is an unprimeable number.

918844 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114852 + ... + 114859.

2⁹¹⁸⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

918844 is a deficient number, since it is larger than the sum of its proper divisors (689140).

918844 is a wasteful number, since it uses less digits than its factorization.

918844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229715 (or 229713 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 918844 is about 958.5635085898. The cubic root of 918844 is about 97.2181295813.

The spelling of 918844 in words is "nine hundred eighteen thousand, eight hundred forty-four".