918128 has 10 divisors (see below), whose sum is σ = 1778904. Its totient is φ = 459056.

The previous prime is 918109. The next prime is 918131. The reversal of 918128 is 821819.

It is a self number, because there is not a number n which added to its sum of digits gives 918128.

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 918128.

It is an unprimeable number.

918128 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28676 + ... + 28707.

2⁹¹⁸¹²⁸ is an apocalyptic number.

It is an amenable number.

918128 is a deficient number, since it is larger than the sum of its proper divisors (860776).

918128 is a wasteful number, since it uses less digits than its factorization.

918128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57391 (or 57385 counting only the distinct ones).

The product of its digits is 1152, while the sum is 29.

The square root of 918128 is about 958.1899602897. The cubic root of 918128 is about 97.1928709342.

The spelling of 918128 in words is "nine hundred eighteen thousand, one hundred twenty-eight".