1128918 has 16 divisors (see below), whose sum is σ = 2580480. Its totient is φ = 322536.

The previous prime is 1128917. The next prime is 1128931. The reversal of 1128918 is 8198211.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128917) 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 7 ways as a sum of consecutive naturals, for example, 13398 + ... + 13481.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

2^1128918 is an apocalyptic number.

1128918 is an abundant number, since it is smaller than the sum of its proper divisors (1451562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1128918 is a wasteful number, since it uses less digits than its factorization.

1128918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26891.

The product of its digits is 1152, while the sum is 30.

The square root of 1128918 is about 1062.5055293974. The cubic root of 1128918 is about 104.1247885705.

The spelling of 1128918 in words is "one million, one hundred twenty-eight thousand, nine hundred eighteen".