918441 has 24 divisors (see below), whose sum is σ = 1441440. Its totient is φ = 561600.

The previous prime is 918439. The next prime is 918443. The reversal of 918441 is 144819.

It is an interprime number because it is at equal distance from previous prime (918439) and next prime (918443).

It is not a de Polignac number, because 918441 - 2¹ = 918439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (918443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6946 + ... + 7076.

It is an arithmetic number, because the mean of its divisors is an integer number (60060).

2⁹¹⁸⁴⁴¹ is an apocalyptic number.

It is an amenable number.

918441 is a deficient number, since it is larger than the sum of its proper divisors (522999).

918441 is a wasteful number, since it uses less digits than its factorization.

918441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 194 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 918441 is about 958.3532751548. The cubic root of 918441 is about 97.2039143879.

The spelling of 918441 in words is "nine hundred eighteen thousand, four hundred forty-one".