1166388 has 36 divisors (see below), whose sum is σ = 2836512. Its totient is φ = 372960.

The previous prime is 1166383. The next prime is 1166393. The reversal of 1166388 is 8836611.

It is an interprime number because it is at equal distance from previous prime (1166383) and next prime (1166393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16393 + ... + 16463.

It is an arithmetic number, because the mean of its divisors is an integer number (78792).

2^1166388 is an apocalyptic number.

It is an amenable number.

1166388 is an abundant number, since it is smaller than the sum of its proper divisors (1670124).

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

1166388 is a wasteful number, since it uses less digits than its factorization.

1166388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 113 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1166388 is about 1079.9944444302. The cubic root of 1166388 is about 105.2642775846.

The spelling of 1166388 in words is "one million, one hundred sixty-six thousand, three hundred eighty-eight".