1118646 has 24 divisors (see below), whose sum is σ = 2508480. Its totient is φ = 359856.

The previous prime is 1118629. The next prime is 1118653. The reversal of 1118646 is 6468111.

1118646 is a `hidden beast` number, since 1 + 1 + 18 + 646 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550 + ... + 1593.

It is an arithmetic number, because the mean of its divisors is an integer number (104520).

2^1118646 is an apocalyptic number.

1118646 is an abundant number, since it is smaller than the sum of its proper divisors (1389834).

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

1118646 is a wasteful number, since it uses less digits than its factorization.

1118646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180 (or 2177 counting only the distinct ones).

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

The square root of 1118646 is about 1057.6606260989. The cubic root of 1118646 is about 103.8080161317.

It can be divided in two parts, 1118 and 646, that added together give a square (1764 = 42²).

The spelling of 1118646 in words is "one million, one hundred eighteen thousand, six hundred forty-six".