918446 has 4 divisors (see below), whose sum is σ = 1377672. Its totient is φ = 459222.

The previous prime is 918443. The next prime is 918469. The reversal of 918446 is 644819.

918446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 918446.

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 as a sum of consecutive naturals, namely, 229610 + ... + 229613.

It is an arithmetic number, because the mean of its divisors is an integer number (344418).

2⁹¹⁸⁴⁴⁶ is an apocalyptic number.

918446 is a deficient number, since it is larger than the sum of its proper divisors (459226).

918446 is a wasteful number, since it uses less digits than its factorization.

918446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459225.

The product of its digits is 6912, while the sum is 32.

The square root of 918446 is about 958.3558837927. The cubic root of 918446 is about 97.2040907805.

The spelling of 918446 in words is "nine hundred eighteen thousand, four hundred forty-six".